Her voting record was short during a period where it was beneficial to vote that way, kamala ran as a centrist in her presidential campaign. She ran away from left wing politics joe biden ran much further to the left not because he is one but because we had a proper primary that forced him into those views in order to win the nomination.
She ran on her liberal record in 2020 and didn't mace it very far
en.m.wikipedia.org
Anyway, you're attempting to use AOC dishonestly. The dem party for the last decade has been ran by representatives from our two most liberal states and two of the most liberal cities in the country.
If the party was so concerned about liberal politics they'd have long turned away from being run by SF and NYC and as a result having the worst politics in those states being hung around the parties neck as a whole.
Criticism from AOC for a long time has been regarding her aims to try and primary her colleagues. Surprise, people don't like that .
Beyond that she's been given comittee seats and the spotlight by the party numerous times.
There's no progressive boogeyman anymore. They killed themselves last election over Gaza.