Progressives are the folks who are fucking things up? You are going to have to explain this one to me. Here is what I see-
The democrats have spent decades throwing the marginalized under the bus to appease moderates like you. The 94 crime bill comes to mind. They have not run on identity politics at all, and have largely only gotten the marginalized vote out of no other options.
Where you seem to be getting your idea of identity politics is the Republicans ability to attach all the marginalized groups to the Dems regardless of the fact that the Dems have largely tried to distance themselves from them on their platform. It's Republicans that are talking about Trans volleyball players. Its Republicans that are talking about men in women's bathrooms. It's Republicans that are talking about cat litter boxes in schools. It's Republicans that are talking about illegals being murderers and rapists. Its Republicans that are talking about DEI, and have been for decades talking about black people being a burden on the system. It's Republicans saying that Dems are trying to open borders to increase their voting pool.
So you see, Progressives aren't doing anything to "fuck things up". What you are seeing is Republicans successfully attaching everything to the Democratic party simply by pointing out what marginalized groups vote for it. As long as black, brown, and lgbtq people vote D, the Rs will always use that to rile up their base. Meanwhile, the Democrats keep serving up Chuck Shumers and wonder why they keep losing elections. You think Progressives are the problem when its the opposite.