You're exactly right. This is outlined in "The S Word" by John Nichols. He was pressured by ardent socialists/communists and actually LISTENED to that pressure. Leading to setting up some of the most important safety nets in US history.
Imagine if socialists/communists ACTUALLY had a chance to take the reins and go further
Her appearance on The Breakfast Club was pretty brave and she handled all of their bullshit really well. There was like a Kamala surrogate on their who kept doing the "get real...you need to listen to the adults in the room...how are you going to pass legislation" bullshit