I’m kind of a political misfit in the US. I don’t find that either left or right really have a good bill of goods. I land on the left end of the spectrum on a lot of social issues. However I think free market capitalism is the best model we have so far. 
Being a poor fit for either ‘side’ I end up reading from sources on the left and right. I am skeptical of both and will fact check any story that doesn’t pass the smell test. I also have friends on the left and right. From my militia-member pal Pat to my lesbian vegan friend Elizabeth.

“Now because of increasingly powerful and extreme echo chambers on the right and left these events tear us apart.”

I mention this because it is a false equivalency to say that left and right are similarly on the fringe. There is a radical fringe on the left. But they are represented by Anarchists and other such non-mainstream wannabe militants. The fringe on the right is different. The Alex Jones conspiracy theorists are increasingly indistinguishable from mainstream Republicanism. Not just Trump, but quite a few mainline conservative politicians are repeating, verbatim, wingnut theories about vaccinations, BLM, and economics.
We do not hear a similar repeating of sketchy conspiracy theories by leaders on the left.

I’d posit that the right in this country has grown increasingly comfortable with being anti-science. This may have started with the fundamentalist Christian drive to exclude the teaching of evolution from public schools. And it surely gathered strength in the anti-global warming stance of American conservatism. 
This type of conservatism is not rooted in the principles of the founders of the Republic. After all Ben Franklin himself was a Scientist.