Your 'true populists' like Trump and Milei who at least try to follow through on what they promised.

I'd argue even that isn't the true populist. Don't get me wrong, I think they've done some good things, and their hearts are likely in the right place...but they've both made compromise after compromise too, and betrayed their base at times too.

We have yet to see the true populist. (True Populism Has Never Been Tried.)