Perhaps we should prevent Facebook from airing ads, like we do for Marlboro.
then you can promote whatever you want - until someone else comes along and decides to obstruct you, of course.
I don't agree that Facebook is necessarily at the point where we can call it harmful, but your "all you need to do is outbid Facebook" spiel is some smarmy nonsense – not least of which because Facebook itself owns some premier adspace outright, which it's more than willing to use to spam whatever new product of theirs that they'd like.