There are active calls by many Democrats for state censorship of websites like Breitbart, which, although I'm not a huge fan, do not call for violence of any sort. Also, I don't think it's fair to simply draw the line at "there are no laws banning specific media sources". It's hard to deny at this point that politicians are actively influencing and engaging with tech executives who are performing censorship. At this point, it's also a little difficult to claim that this is a trend that will change course or not accelerate.