But it's still leftist in origin and in ideology. Saying the modern wokified U.S. Left isn't leftist is just a No True Scotsman argument. Leftism and rightism are not narrow, specific things, they're more like inchoate moral intuitions that are given more concrete form by ideology and realpolitik. Individual leftist or rightist ideologies are often contradictory with each other. But the underlying sentiment is usually still recognizable as one or the other.
As someone who is a communist, the Dems have nothing to do with Marx, and they are about as capitalist as they come.