Ray, this is what a group of people has bought into, but many valid underlying issues of no fault of their own are familiar also to those on the political left -- no apparent opportunity, being overlooked, etc.
Many Americans have had aspirations dashed while seeing others wildly succeed.
We don't have the economic mobility needed to keep a happy and prosperous nation. It happened in the U.K. and Russia, resulting in Brexit and Putin. As you point out, divisions and inequity are growing concerns between rich and developing countries.
Hopefully, MAGA Trump will disappear, but until we correct the disparity of income, wealth, and (because of these) opportunities, other Trumps and MAGAs will surface.
Many thanks.