The establishment works through the left and right and is completely untrustworthy

The establishment is the establishment, whether it works through "the left" or "the right". 

And the establishment is completely untrustworthy, as events over the last 20+ years have shown (and probably throughout history as well). 

The establishment's interest is in maintaining and expanding power and control, not in sharing truth, unless it serves their interests. 

Mark Twain, Jesus, Bill Hicks, George Carlin, Jimmy Dore, Bill Cooper and many other speakers of truth have known this and spoken of it eloquently and often humorously over the years.