The problem with "going back to the American ideal" is that it was never on offer for parts of America. It was never on offer for blacks or hispanics or gays or women that didn't want to get it solely as someone's wife. The U.S. succeeded well in the melting pot, until the colors of the pot stopped being white. We successfully blended a dozen or more white ethnicities into a single one, but we left out everyone else, at first legally, and now culturally.
That's the problem with "Hey, let's all just think of ourselves as Americans and forget identity politics." Without identity politics, white men continue to exist under one standard and everyone else another. So it's not surprising that the call to end identity politics comes over and over again, from white men, particularly white conservatives.
I'm fine with continuing the great American melting pot, but first we have to turn up the heat, because lots of it has never been allowed to melt. Once we're all on the same footing then maybe it'll be time to set aside sub-coalitions and all belong to a single big coalition of equals.