Any decent History Prof. could have explained to the U's that openly taking one side in long-term cultural wars was not a viable long-term strategy.
(Or, maybe that's why so many universities cut their History Dept's so brutally? Though "just shoot inconvenient messengers" is also not a viable long-term strategy.)
If you look at the people on the actual political left in the US (Bernie, AOC, etc) are they talking about identity politics? Last time I checked they were talking about the problems that impact non-billionaire Americans: Healthcare, Social Security, Raising Minimum Wage, and other efforts to improve quality of life for Americans.
The only times I ever hear about identity politics is when I listen to conservatives describe what people on the left are talking about.
The majority of the Democratic party is the group being actually shifted by the Overton window away from the actual political left. They are mostly centrists, and not leftists. Frequently they are conservatives. I wish Harris suggested half of the policies that got ascribed to her, but she was honestly to the right of Clinton.