I have no side to take in this discussion, but just wanted to point out that the USA is not the only country that exists. I know it sometimes seems that way on Hacker News, but I promise you that there is a big wide world out there that has nothing to do with the Supreme Court :)
What is the share of revenue from US? I would guess it's not thaaat far from 50%. The median income in the US is like 20x of India, so presumably ad views from the US ought to be quite a lot more valuable. I would guess EU + US is the vast majority of revenue.
The post they're replying to says "half of their customers", which implies 100% of their customers are in America, which is obviously completely wrong.
The number of users matters much less for FB. The amount of users which can be monetized matters much more and the CPC for US users is always much higher than other countries.
At this point, with the impact they have on the global stage and the fact that they will only pay their taxes where they want, it's a but irrelevant to keep this frame of thoughts.
If their entire user base is American, and exactly half are women, and every single one of those women have had an abortion in the last year, and they all live in states where it's illegal, yeah, half of their customers might end up in jail.
Nearly 1/4 of women have done abortion in their lifetime. And there are also co conspirators like husbands, Uber drivers, nurses and doctors.