Facebook is not against Bitcoin but rather intends to avoid the situation of misleading its community members through its paid advertisement. Users of facebook can post crypto and Bitcoin related topics on facebook without any penalty.
Indeed, facebook not againts bitcoin or cryptocurrency, they already just lift ads ban. I think facebook ban crypto ads because many ICOs are scam and they want to protect their user.
I am believe any internet company will support cryptocurrency because cryptocurrency is a new technology and i am believe internet company will take advantages on their member who have crypto