This really is going to be an interesting debate.
Under public accommodation laws, you have to decorate a cake blessing gay marriage if you want to be open to the public, i.e., your religious views aren’t allowed. Facebook, Tumblr, et. al., are arguably open to the public. Are we now going to create another hair-splitter that its absolutely OK to refuse service based on political views, but not on anything else? Or is it political views, and Christian beliefs? Can I refuse to decorate the cake, and say it was because the customer was a democrat?
Maybe this is why Obama was so keen on handing over control of the internet . . .
Meaning discrimination,based on ideological views is allowed, refusing to provide service to promote what the owners find offensive, but such denial of service to promote what the owners find offensive is not allowed if the persons requesting service are of a protected gender, color, race or or country.
A baker, florist or photog, sign maker, etc. cannot refuse to provide service to homosexual wedding on the basis of not wanting to be a party to what they disapprove of, but the media can refuse to host ads for a conservative conference on the same basis.
The difference with banning InfoWars (won't miss them myself) etc. is that the denial is for a free service, even if money is made by allowing them to report what they will.
If a media company was forced to report news, or accommodate those who want free service (like as in fair speech laws), then Free Republic could be forced to allow liberal posters to do that he re.