In fairness, do we know for certain what happened in Facebook back then? Maybe some employees did protest, maybe they're the same people protesting now, even. Or they quit. Thing is, LGBT issues make engaging articles. Third world suffering? Eh, it depends.
Yet, I agree with the overall point because this is the crux of the matter: on average, one of these simply matters more—one way or another, see transphobes cheering—for people of this subgroup. This is us.
The usual notes apply: good on them for protesting, big media isn't helping, fully ethical employment is like fully ethical consumption.
Sorry, I can't tell if you're serious or not.
It's extremely unlikely that facebook has in place a system that allows any lowly engineer to cause such damage alone. No hard drive hosting unique files no one else has, without backups, without security, and so on.
If you're a billion dollar corp that depends on an important recipe to make your product, you're not leaving the only copy of it on front desk with no oversight.
I don't see how deleting files would work as a form of protest. Would probably get you in trouble, though.