Clearly the fact that the working class is fleeing the Democratic Party - the ones who are supposed to be the caretaker of those forgotten and oppressed. The composition of the party is becoming something ugly. It's great when other people want to vote for you, but not when they invade and change the meaning of what that vote is for and the constituencies that benefit.
To take this further: because politics is a practical trade electoral coalitions dictate policy to a greater extent than is fashionable to admit (which is also why perceived betrayals by politicians are so toxic). Essentially if you wish to see social policies that benefit the whole of society rather than just the top whatever percent in terms of income, then recent trends in American elections are
bad because they represent the dilution of class politics and the marginalisation of the American egalitarian (i.e. that which was once described as 'populist' until the word took on other connotations) tradition.
