Ending 'Net neutrality would be unconstitutional

With an FCC stacked by Trump-appointed hacks preparing to gut 'Net neutrality regulations passed 2 years ago, it's hard to see how doing so would even pass First Amendment muster - not to mention the fact that the FCC lacks legislative approval to do so.

Didn't the First Amendment used to protect free speech? Nowhere does it give utility companies the right to censor speech they disapprove of. If the phone company had listened in on calls and cut them off, there's no way it would be legal. (Not like it didn't happen.) So how would it be legal to abolish 'Net neutrality?

Odds are there are going to be some court challenges to the FCC's upcoming ukase. I just don't see any way it can stand.