Sure, that's true. But if Facebook is in a "gray area" (which is very debatable), then why not work for a company that isn't in one?
There are lots of companies to work for that don't have these endless debates about their ethics.
> My TikTok feed is far more risqué than my Instagram feed is.
Yeah, again, there are more than two companies to work for. It's not like anyone is so specialized in 1B+ social networks that they can only work for Facebook, YouTube, or Instagram.
It isn't even a matter of pay. There are comparable salaries at lots of companies.