It's a big problem. Young people do not have the same "American" values. They see the whole idea of individualism/personal responsibility as outdated, wrong and immoral. You and I might quibble about how far to take social safety nets. We probably both agree on a lot of Locke's ideas though. But today, Millennials and Zoomers think Marcuse's, Jacques Derrida's, Michael Foucault's ideas render Locke obselete. It's what's taught in schools. Eventually Americanism will die out unless those values are reinstated in what parents and schools teach their kids.The left "fringe" is no longer the fringe. Younger people and certain minorities increasingly hold more liberal views. The Cancel Culture.
pish posh.
There are still a lot of us middle-of-the-road traditional democrats that may be "tolerant", but the radicalized left is creating quite a backlash within the party. If we are unable to jerk their reins and stop the ignorant silliness, then we won't vote for their candidate next time around. The interesting thing about ballots is that it is OK to leave a category blank.
Unfortunately, traditional democrats are dying off. One or two more 4-year cycles and most of us will be gone.