Some additions/changes seem OK, and some of the connotational word choice changes are probably not a bad thing.
However I'm not ok with discarding any concept of religious acceptance in the US, of the importance of hispanics in TX, and justifying the facist actions of McCarthy.
Further, removing Jefferson from the list of important revolutionaries and replacing him with St. Thomas Aquinas, John Calvin and William Blackstone is disturbing.
Ultimately, I don't think non-historians should be involved in the decisions of what was or was not an important part of history. I see people and groups on both sides who are leaning more and more into a dystopian empire for my kids to live in. I'm really not OK with that.
I don't like groups deciding the fate of my kids education based on the willful ignorance of reality. It borders on fanaticism, and these sorts of changes border on facism.
I definitely don't have the charisma to be an influential politician, so at what point does it mean we form our own, separate school?