I have also found that the losing party tends to suffer from the wildest delusions. I'm not really sure why that is, but it is always sad to watch.
I would disagree with you on this statement. The far right is consumed by conspiracy theories (Seth Rich, Pizzagate etc) despite controlling all three branches of the Federal Govt.
Why would you believe what a "fake news" site operator tells you?
I'd have myself a hard think about what lead you to writing such a comment up.
Ironically though, just as another anecdote (and to the best of my knowledge), the very first "fake news" right-wing site who's operator was confronted, ended up being a left-voting liberal who [paraphrasing] "hated conservatives and people on the right, and wanted to spread disinformation to them to pollute their arguments".
But I guess we'll never know, so the best solution is still non-censorship.
Edit: Found some links. Couldn't find the original article though.
0. Republicans seem more susceptible to fake news than Democrats (but liberals, don’t feel too comfy yet)
http://www.niemanlab.org/2017/05/republicans-seem-more-susce...
1. Article that says both left and right visits his fake news site.
http://www.politifact.com/punditfact/article/2017/may/31/If-...
2. Democrats are falling for fake news about Russia
https://www.vox.com/world/2017/5/19/15561842/trump-russia-lo...
3. The rise of left-wing, anti-Trump fake news
http://www.bbc.com/news/blogs-trending-39592010