And back when we had an actual primary (rigged, with an overcrowded field), Warren was the choice to appease the 'progressive' identity activists who attempted, with the help of Warren, to tar & feather Bernie as an old white misogynist. They all pretended to have some knock-off version of Medicare For All because it polled so well, only to rugpull the concept as soon as Bernie was booted out.
Dems know how to win, but it's against capital's wishes, so they obey accordingly as controlled opposition via illusory democracy and choice.