There is an issue of State here, the Turkish State, requiring Facebook to filter and or creating at least the implied thread[sic] they will be blocked if they do not filter.
Yes. But it is, in fact, the Turkish state. Not the US state.
I agree with you that I don't like FB's policy here (nor Turkey's) and I would be much happier if FB operated with a lean towards freedom of speech, but that's never been who they were -- they mute, restrict and ban US posters on a regular and constant basis WRT written material and photographs, and they have inflicted their "Real Name" policy on members without regard for the numerous negative consequences.
The objective of FB is to sell ads they can put in the faces of their members. Those who describe members as FB's "product" seem to me to be very close to the mark. How they treat membership, then, can be expected to be the fruits of a policy to maximize the size of the group. And frankly, that's what I see when I look at their policies. Not care for quality, safety or freedom of speech -- just a place to farm ad consumers.
I suspect we're in a similar position to someone trying to tell a happy dictator that "absolute power is bad." It wastes our time and annoys the pig. Er, Zuckerman, I mean. But I repeat myself.