That's a very dehumanizing statement to me. I would never want to work at a place that doesn't treat its employees as humans. That doesn't mean I condone sex at the workplace, but I would not accept to be treated as less than a full human being.
Humans are not automata, and I don't aspire to be one, not even for "just" 8 hours a day.
The way you are expected to interact with humans in the VAST MAJORITY of situations is closer to how you are expected to interact with coworkers in a professional setting, than to a speed dating event or a crowded bar after midnight.
We're not having orgies in the street. In modern society you are expected to treat humans in the vast majority of situations without "sex" being relevant to the topic of discussion, whether it's on the street, in the grocery store, on the tram, or in the library.
Acting like this is not clear feels like an exercise in pedantic loophole seeking to justify sexual harassment. ("How are people even supposed to meet each other if I'm not allowed to <blank> to women in <blank>?")
First of all, the "VAST MAJORITY" of human interactions are irrelevant (cashier, bank clerk, passing people on the street). Given how much time you spend with coworkers, they'd qualify as friends, or acquaintances at least.
Also, there's a large gap between "professional behaviour" and "orgies in the street" or "sexual harassment". For example, I don't mind talking about menstruation or condoms with friends (who I'm not having sex with, nor have/would I ever try) but I don't think those would be appropriate topics for most workplace situations.
Your life must be quite different from mine. My casual conversations with my friend group - who are 20s and 30s liberals, mixed gender - are not office appropriate. I would certainly not bring any of the regular political debates into work either.
The amount of sex related conversation in my friend group is, from my perspective, normal but entirely inappropriate for work. Even my female barber talks about her sex life during haircuts.
At work I keep my sarcasm set to near zero, avoid politics, religion, and sex, and generally keep a narrow focus. Work is an artificial environment, but my coworkers don't get to choose me. It is on me to behave in a way that is beyond reproach.
Remember the context: OP literally advocated for never being alone with a woman without a third party present.
Yes, I have conversation with friends that are not work-appropriate.
And I also have conversations with coworkers that are casual and work-appropriate. Yet they can be friendly and reference current events (which are inherently political), religion (e.g. acknowledging ramadan fasting), sexuality (gender of partner), or the existence of sex (parenting). OK that last one is a stretch.
But still, you can do all this without needing to firewall your entire personality.
Ironically, the tech industry has provided an alternative solution - cameras recording everything everywhere. Dash cams to provide proof of what happened in collisions, workplace cameras to reduce liability for employers and also helps protect employees, home cameras also for liability reduction as well as protection against police lying about what happened…etc.
The only way to treat this as gospel is to never be present with another woman alone.
That the tech industry is so inept with opposite gender interactions that they have adopted tactics from religious zealot evangelicals is APALLING.
Treat people as humans. Regardless of gender or sexuality.