"When economic systems fail people, right-wing populism arises, always blames marginalized communities, immigrant groups, those who are the weakest." The solution is to give a better answer, rooted in "left-wing populism, a populism that is there to address the underlying economic failures."
[from article]

Platner is exactly right!
Case in point: See what just happened in the UK with the fascist Reform Party and its leader Nigel Farage. He did well in those elections by spouting right-wing populism. That's demagoguery!

The Greens did exceptionally well with a progressive & "left-wing populism that addressed the underlying economic failures". That's the correct strategy - it's humane!
And so it goes!