While I am as concerned about censorship as any other, what would Snowden's response have been if Trump had tweeted, "The time is now. Take no prisoners."
We've already allowed the government to define what's legal and what isn't - which obviously differ from country to country.
Now it seems private companies also want to weigh in and define their own kinds of "allowed and not allowed".
I honestly do think we're damned if we do (allow FB to censor) and we're dammed if we don't (allow FB to censor)