I've written about this quite a bit the last few weeks.

https://medium.com/@davidbmorris/the-reasons-jamaal-bowman-lost-part-2-66d6ba98e40d

This one pretty much explains the Squad's flaws and some real problems that progressives have been ignoring not just the past decade, but really there whole existence. In the world accoring to the left, progressives are the normal ones -and everyone else is 'weird' because they haven't realize that the left is the only sane and rational approach, that compromise is for suckers, and purity should be favored over adaptation. That's one of the reasons Cori Bush lost yesterday.