Pearson Education? What’s their slogan, “Proliferating ignorance one textbook at a time?”
Pearson is the publisher/distributor. They don’t write the textbooks. Other textbook publishers like McGraw-Hill also publish textbooks but Pearson is probably the largest right now. It is the authors who slant those texts with their political points of view. Because certain states and school districts along with the teachers unions make up the largest consumers of textbooks, they become the de facto arbiters of textbook content. Because of that buying power, even a million complaints will probably not sway the publishers to make changes. You have to go to the individual state and local levels along with hitting the teachers unions. Good luck with that.
My daughter ‘s middle school history book had more pages and chapters covering the Black Panther Movement than the Civil War.