Helping people to thrive better with today’s economy would go a long way
However, I don't think that's what's fuelling current sentiments from the right. I think it's more a feeling of "everyone is against you", stemming from a distrust of mainstream media (mentioned in the article) and assumptions about mainstream media heavily influencing politics. Also, the current crop of Democratic candidates are more socialist (I'm using that term in the current "Democratic Socialist" vernacular) than ever before.
I think the best solution here is to reform our voting system to eliminate first past the post. We've been getting more and more extreme politicians, and implementing something like ranked choice voting should encourage more moderate candidates, which should in turn encourage more moderate mainstream media, which I think would ease political tensions. It's probably not a panacea, but I think it's a move in the right direction.
And I think we just need more centrism to ensure these fringe groups don't get more attention than they deserve.