Who decides what is normal or harming people? Facebook - on a page for users in Saudi Arabia - most definitely should not use US or EU or any other local law to decide what Saudi Arabian users should and should not see and what is or isn't harmful ("gosh, you can see her nipple!"). It is very clear in law in most countries that if a website is directed at users in X country then the laws of X country is what governs what is and isn't allowed. What you are arguing is that for example GDPR shouldn't govern Facebook. That is a standpoint, sure, but it isn't how courts see it.

In my experience it is often people in the US or EU that argue that laws they don't agree with (anti-gay laws of Saudi Arabia or Russia?) should not be upheld but if it is the other way around and their own laws are something they support (like maybe GDPR or showing a nipple) then it should be allowed. You can't have both.