The worst thing the Dems do is adopt the language of a more revolutionary movement (trans inclusivity and acceptance being a big one) and shoehorn the demands of that movement into small incremental nothing changes. Things like "oh yay! Ivy League sports teams now have to allow trans athletes to use their locker room of choice" and similar small scale policy changes.

This serves to neuter the movement because people entering it see it as toothless because the original demands of restructuring the mentality of society to understand and innately recognize and tolerate these natural states of humanity become the equivalent of "we're giving a $5000 grant to small businesses that last 5 years in a minority community" type actions.

The danger of identity politics as practiced by the Dems is that's it prescriptive and demeaning instead of revolutionary and empowering.