I don't think that happens as much as you'd like to believe. Do you have links to any examples?
To the extent that it does happen, none of us should be siding with the socialists, but I'm sure there are an equal percentage of "transgressors" in both the Cruz and Trump camps.
“Do you have links to any examples?”
Just do a keyword search on “salon” or “slate” or “washingtoncompost”, and you will find them.
It’s amazing how many anti-Trump articles from those leftwing sites (or leftwingers writing for MSM outlets) have been posted here.
In the absence of occasional “barf alerts”, the majority of such postings imply the OP’s agreement with the content or tone of the article.
Here’s a couple of prime examples:
http://www.freerepublic.com/focus/f-news/3417932/posts
See post 27.
http://www.freerepublic.com/focus/f-gop/3415850/posts
See post 49.