Rightwing propaganda in the USA is part of a concerted effort by the Heritage Foundation, the Powell Memo, Fox News, and supporting players. These things are well understood by researchers and journalists who have produced copious documentation in the form of articles, books, podcast series, etc.

One excellent example is available here[0] in a series by the Lever called Master Plan. According to their website, a book has been written broadening the discussion.

They have played us for fools and evidence of their success is all over the news and our broken society. It's outrageous because none of this was by accident or chance. Forces didn't magically come together in a soup that turned out this way.

0. https://the.levernews.com/master-plan/