Something that’s stuck with me for a long time is this quote within a quote about Susan Sontag:

“She was asked what she had learned from the Holocaust, and she said that 10 percent of any population is cruel, no matter what, and that 10 percent is merciful, no matter what, and that the remaining 80 percent could be moved in either direction.”

-Kurt Vonnegut

https://inthesetimes.com/article/susan-sontag-and-arthur-miller

https://youtu.be/KxWckALd794

“This deal is getting worse all the time!” is the hallway one, but I thought the same as you!

Yes, most Democrats aren’t Left enough. Some are trying to push the party to the Left, however.

I think the confusion here is your blanket “they” is conflating the mainstream Democratic party instead of those of us who are pushing this stuff at the grassroots level, e.g. actual progressives/Leftists etc.