So don't call it populism (which I agree with you), call it common sense. The "elites" have sold out this entire nation. The serfs are kinda pissed. Sorry that that abrades your sensitivities.
You know what’s really funny?
One thing that the founders singled out for condemnation was “faction”, their term for political parties.
Yet we don’t hear Levin and his comrades condemning political parties. Instead they are attacking the “populism” that is doing a yeoman’s job of breaking the stranglehold that elites have put on our electoral process.
It’s not the first time that elites have howled in anger at “populists”- Andrew Jackson and his supporters were accused of the very same thing.