That's nothing new. I saw how they were changing the facts 10, 20, 30 years ago and made sure my students knew it.
I just saw a chyron with poll results from “US adults” wherein almost 50% of the respondents agreed that ALL teachers should be paid more. I should say!....I’ve been told that ^OFTEN^ by my teachers for 50 decades!
My pre-law prof in college used to opine that congress-critters were underpaid for their efforts. On his sabbatical during my senior year, he ran for federal office.
The pinko commieprog stuff has definitely accelerated although it was getting bad a long time ago. Bill Ayers and his crew decided after their attempt at violent revolution failed, to work their way into leading positions in foundations, governments, NGOs and so on, including textbook writing. The Annenberg Foundation was, IIRC, involved in the textbook production, this foundation is connected with the Ayers family (they had wealth) and again, IIRC, 0bola and maybe his beard wife were involved on that foundation board at some point.