Because Amber understands that you practically have to build communism with some of the dumbest stupidest most racist and most reactionary people, and not a glorious soviet-realist style gang of clear eyed ideological comrades.
"escape" from fascists is literally a reactionary individualistic daydream. You can either kill them or rehabilitate them, and the idea of a glorious purge of evil is also a deeply reactionary individualistic daydream.
Lastly Amber knows this because she works with actual union members who aren't ideologically consistent terminally online communists in general, but typically blue collar physically broken Amerifats who have no issue voting for Trump.
We can talk about white people or reactionaries or whatever all we want till the cows come home, the real problem we ignore by doing that is that there are 322 million people in this country and only a teensy tiny bit are your glorious soviet-realist gang of comrades, less than like 1%. Slightly above the total votes that De La Cruz got in the 2024 election. The vast majority of them are various levels of idiotic reactionary. Being mad at them for their own stupidity is Democrat brain thinking.
Literally your answer is in your complaint: "Well you call them the scum of the earth, why wouldn't they hate you" -- literally a basic understanding of human communication.
Half of this thread is saying how white people basically need to be John Brown to be good allies. I agree with that sure. How the fuck you actually gonna get them to do that though? Kill all the Non-John Browns? If the logical ends of your ideological thinking is that "everyone is just going to have to do the right thing and I'm not going to deal with icky people", you're no different than the Democratic Party's core offering.
I'll take all the downboats now.