Your example is Ilhan Omar? Who is still broadly pretty popular in her district and notably still in office, she just had some democrat leadership yell at her and tone police her a couple times? She's been calling this a genocide since october and... surprise surprise, she's fine. If anything people have more respect for her now.

This genocide has changed the landscape, it's out in the open and Isntrael have dropped the mask, dropped almost all pretense, so for bernie to continue to be soft on Israel, acting like it's still the 2010s is fucking shortsighted even in his own self interest, and for political popularity.

AND Bernie isn't even a dem, and he's a well established incumbent senator, so he's even more isolated from that sort of establishment pressure the article you linked describes.