"It's known" sounds a little final.
In a more level tone: there are venues for equalizing communication, because of course in society there are hierarchies that we've struggled with for ages. The charge for any individual is being willing to expose themselves to those environments and being willing to engross themselves in the mess of what that kind of interaction can turn up.
Then again, I kind of side with Bohm about the connectedness of people, and yet...
I raise you Bohm on communication problems:
>If each one of us can give full attention to what is actually ‘blocking’ communication while he is also attending properly to the content of what is communicated, then we may be able to create something new between us, something of very great significance for bringing to an end the at present insoluble problems of the individual and of society.
Scratch all the drunk talk that follows and I also raise you this:
http://www.nytimes.com/1974/02/17/archives/the-irish-pub-is-...
There traditionally (in some cultures, anyway) venues where people from various social hierarchies were equals when they passed the threshold, and communication is then wide open. They still exist -- but if you're North American don't count on finding them on the strip.
I don't argue that doesn't happen, but I don't think it's isolated to one end of the spectrum. I would bet the symptoms are the same at either extreme -- right or left.
If you mean "center-left" when you say right, I think what you're actually implying is communication is better tolerated in communities with more balance between political viewpoints, and less given to extremes.
But traditionally, outside of movements, it's been somewhat bad form to bring politics into the pub at all.