Facebook is a single website. Other websites can host it just fine.
This is the same as blocking content on your own forum or comment section on your blog. Yes fb is huge, but still just a website, and one with fading popularity.
I see the comparison you're trying to draw, and I don't agree.
People use FB because other people use it. There's a lot more complexity, and algorithm fuled habits. But in the end, FB provides the service of communication and content recommendations. Using that attention, it can sell ads. Without that willingness to give attention, they can't sell ads. There are no significant hurdles to starting a social media site.
Credit card processors facilitate payments from one group to a different group. They aren't an endpoint, they are middle men. They don't need to court the attention of users, they are in a position of power it where they can interfere with the lives of others, and have formed a coalition with a total monopoly over the digital trade of money. Good luck starting a competitor while attempting to shun PCI compliance.
If I never use FB, I can still interact with friends, family, buy and sell ads. If I never use a credit card... I've been cut off from the vast majority of the things that I would buy.
It's reasonable for different rules to apply to groups with vastly different powers. I wouldn't expect Google to be held to the same standard that I hold PG&E. Nor would I hold PG&E to the same restrictions I'd place on Google.
Yet I just found an article that said that MAU was 3.065 in 2023 and 2024 and 3.07 in 2025 (i.e. MAU is flat not decreasing). Did you drop a zero?
AFAIK there is no consensus that Facebook usage is declining - however that narritive gets told by people. Of course, it might depend on which country you look at.
There is no win in using this administration to strong-arm other countries into giving tech corps some sort of extraterritoriality.
Yes, Spain is screwing up. But it is the responsibility of Spanish electors to fix the mess. Any alternative involving the US department of State should be fought.
...But, of course, US corporations enforcing the same kind of censoring is a-OK, because corporations are people and their censorship is free speech.
I'll be open to your posititon the day Boticelli's Venus doesn't get censored on FB because there's a pair of tits somewhere on the painting.