It is certainly not evidence that Democrats should stop pushing back against a left that attacks basically everyone to the right of dem-socs.

They should stop attacking everyone to the left of netanyahu. And so should you.

He’s an actual dem-soc, but even he has tried to build a broad coalition, not just declare war on everyone to his right (despite getting called a bootlicker for his approach). He got support from progressives within the party and, after proving himself electable, eventually some more mainstream Democrats endorsed him too.

And the "no matter who" wing of the party lobbed Islamophobic attacks at him after he won the primary.