> More likely the next stop is Congress.

Well, if by "next" you mean "previous, current, next, and always"; Republicans in the Congress have been pushing to explicitly prohibit FCC Open Internet action since before the 2010 Open Internet Report and Order. The only thing they've gone after more has been the Affordable Care Act.

But that's a different track than the legal challenges, which have been the only place where neutrality opponents have had concrete victories in the past.

I can understand why Republicans don't like net neutrality. I cannot fathom at all the argument made by Trump that a law requiring equal access to both liberal and conservative media, not to mention everything in between and outside, is going to "target conservative media". Is he saying that if people have equal access to all, that they will reject conservative media?

You're mistaken if you think that trump is presenting any kind of rational argument. Instead he is appealing to his voter base, many of whom feel that the mainstream media and Silicon Valley companies are silencing conservative viewpoints. See search terms: "Google biased towards Hillary", "Facebook censoring conservative news", "conservative msm", "conservative lamestream media".

You're overthinking it -- it doesn't make sense. At best, it's a sort of overblown rhetorical point drawing a comparison between one dislikable thing and another, at worst it's a conspiracy theory. (The conspiracy-theory read is basically "this is the first step towards regulating the internet so they can ban Rush Limbaugh" although it's sort of an Underpants Gnomes level theory. There's no step 2 to get you there, and in fact it's much easier to get to the content-censorship outcome via media-company control of the Internet.)