This has all been in the making for about a decade now.
Recall that the right was basically declared extinct under Obama. Those were heady days for the left. Obama ushered in a new era where national elections would be determined by minorities, women, immigrants and sundry classes of ‘victims’ of white oppression.
This, they thought, gave the Democrat party license to swerve to the left. A very hard left, as it turns out, since an actual socialist is threatening to win their nomination for president.
And now they don’t like it lol?
Their ushering in of the "new era" produced results they don't like and now they don't know what to do about it. They pandered to those groups you mentioned and when those groups took what was being offered, it caused an unintended result for the Democrats. I doubt they expected it to go this far.
