If the people who aren't supposed to be targeted think they're targeted, and the people who are supposed to be targeted don't care, then maybe something has gone wrong with the discourse.
Simple counter-question: How do you define "sexual harassment"?
Because that's the actual issue these days. Behavior that used to be "normal" and lead to people getting to know each other is considered "harassment" these days.
One of it's points being that a big draw for many women is how they like being "admired" by so many men on Tinder in the same way they used to appreciate being catcalled: "Es ist dieses dauerhafte Umgarntwerden, das den Reiz ausmacht. Wie früher das Hinterherpfeifen oder Zuzwinkern.
So what's the message here? What is a single male supposed to do in such an enviornment? Some women like the catcalling, others consider it harassment.
Meaning: The saver option is not to catcall, but that also results in vastly reduced chances of getting to know any woman at all.
Especially when the "competition" does not bother at all and just keeps on catcalling and thus actually ends up getting to know new people, while you sit in your misery alone thinking "Well, at least I didn't harass anybody.." hell of a good time!
Then there is online dating, which has it's own slew of massive issues as a single male. Competition is extra fierce because on these platforms quite often men outnumber women 2:1 or worse. There you might not be called out for harassing that quickly, but there you need a harassing like behavior to be actually successful. You need to be somewhat dishonest about yourself in your presentation, you need to approach/contact as many women as possible (while disregarding their plight of getting spammed), to increase your chances for a successful reply and meeting.
All these are things "we" are supposed not to do, yet they seem like the only viable tactic to any measurable "success".
Nobody is gonna start a relationship with me because I'm just such a nice guy who didn't come on to her, those are exactly the kind of signals that keep you in the notorious "friend zone" for all eternity, but those are the kind of signals that are seemingly expected from males in any and all situations or else you might be considered a "creep" or a "harasser".
This get's even worse when culture actually adapts. Not too long ago a common complaint would be how "Men always feign romantic interest to get sex", true enough. Now increasingly men (and some women) have become more pragmatic about this and state their intentions in quite a blunt way and guess what? That can quite easily also be interpreted as "sexual harassment" when somebody comes on to you with "I'd like to have sex with you".
So what's a single guy to do? Especially when you are also lucky enough to be on the spectrum and have a hard enough time parsing social situations already, this constant ambiguity makes it an impossibility to improve my understanding about social interactions and dynamics, literally paralyzing me.
I'm in my mid-30's and I've given up any intend to actively look for a partner because I don't want to inconvenience anybody with my failed approaches or end up being seen as some kind of "creep" who "harasses" people and makes them feel uncomfortable, when that's actually the exact opposite of my intensions.
Maybe English is not your native language ? (it isn't mine BTW :) Catcalling has never been acceptable behavior, and, in my experience, does not increase anybody's chances of meeting new people. Catcalling is not flirting.
As to how to meet women (take this advise with a mountain of salt, was never a ladies man, have been married for 20 years and never cheated, so haven't flirted in 20 years :), play the odds; join groups that do stuff that interest you, get in a position to meet women, and meet them as people first, make friends and then relationships might develop; (and if not, you have more friends, and had fun doing whatever you were doing). That is, don't go to meetups (or pokemon tournaments, or the church choir, or ...) to hook up, go there because you want to be there, and, chances are, if you meet enough women you will find your match.
Of course, there's a lot there because it simply ain't as simple as:
"Do you sexually harass?" or "Do you have consent?"
Such statements underestimate the untold complexities pretty much all social interaction are based on.
That's why solutions to these problems are not as simple as some people like to pretend. Nobody really likes talking to each other bluntly, everything always has to be implied or "said trough the flower", leaving way too much room for ambiguity and as such misunderstandings that keep on going on as nobody wants to be the guy/gal angering the elephant in the room.
About your VC pitch question: Really depends on the type of sexual advance. While I don't practice it personally I don't see anything wrong with somebody telling another person "I consider you very attractive, do you want to have a good time with me?", it's a given that some people might not be as classy with their choice of words.
Yet it's quite direct, it's to the point and thus doesn't leave much room for misinterpretation or waste anybody's time with ambiguity.
As such I don't see why anybody would need consent for asking, first and foremost it's just a question and not an insult, order or the "objectification" of somebody.
It's another story if with "sexual advances" you mean something like groping, uninvited kissing or any other uncalled for body contact. Needless to say, that's a no-go and nobody ever claimed otherwise.
And yet I'll bet you would never feel comfortable implementing your proposed direct approach in a workplace environment. Or most environments. Because it would make people uncomfortable.
So maybe analyze that feeling. Because the reason you don't have a relationship is not because you can't casually sexually harass women.
Different people consider different things "uncomfortable" during different times. It's an emotion, that's why there are no objective clear cut standards for "what to say without making anybody uncomfortable", it's dynamic just like many societal norms are.
The reason I don't practice the direct approach myself is that, as I've already mentioned, I'm just not interested in casual sex and I'm rather introverted. The irony being: Guys who actually practice it, are more likely to end up in relationships.
Using the direct approach for getting into a relationship, which I have tried, quite often just ends up being seen as the epitome of creepiness and results in ridicule and shaming.
> So maybe analyze that feeling.
I "analyze feelings" pretty much constantly, even over needless memories way in the past. The issue being that you can't look into other peoples heads to analyze their "feelings", as to not to offend them with something you might say or do.
> Because the reason you don't have a relationship is not because you can't casually sexually harass women.
That's never what I argued for and you putting my statements so much out of context, to make me look like something I ain't, just reenforces my original point.