I'm not sure I even agree with the premise. Politics and "discourse" around it, especially by common people, has always been crass. It's just that those common people have a megaphone now that the internet exists.
I don't disagree with your feeling about this, but just to clarify:
The domain gofccyourself.com was set up by John Oliver's show, "Last Week Tonight," and their modus is to use humor to draw attention to tedious but important issues.