You're being downvoted because people don't want the truth. As a lifelong Democrat, I agree with you.

Dems were playing too much identity politics.

Example: A local "progressive" Democrat Supervisor (in SF) was quoted as saying that she would support the most progressive candidate, UNLESS it was a straight white male; in which case she would support the Black female candidate, Black male candidate, Gay candidate, etc. (this is going from memory, but you get the idea).

I feel like the Dems totally ignored the "white straight male" demographic. Democracy is a numbers game; you self-select a smaller pool, and your chances of winning go down.