All too true, unfortunately.
You at least are catching up on things it seems.
I have seen and denounced the damning trend for over four decades myself.
It is everywhere in the West, not only in US.
This paper here I recently discovered explains the why and how of the tactics and strategies involved:
https://unconstrainedanalytics.org/report-re-remembering-the-mis-remembered-left-the-lefts-strategy-and-tactics-to-transform-america/
Good starter to lay the foundation of some work of our own…
know thy enemy, sorta…