I'm not a usaian so I might be missing something but isn't the most radical thing this guy has said something like: "I think people who have literally too much money to spend should have too much money to spend (smaller) so we can feed people and give them medical care"?
Does the mayor of new york even have the power to move on that? I would've assumed they like direct bureaucracy providing infrastructure and chair council meetings and shit.
It's pretty cringe to see handwringing over this guy make it all the way over the Pacific. He's a mayoral candidate, for people outside his council area or whatever isn't this a huge nothingburger?
He is wants to introduce state ran grocery stores with lower prices than chain stores, freeze rents for some people, and give people free childcare. So like basic human empathy stuff. Its still treating the symptoms of capitalism but its treating them as directly and effectively as possible. His platform isn't that radical, but any concessions to the working class that doesn't make someone a buck will always be faced with hard opposition by those who benefit from the status quo.
I'm not an American, but I would imagine him treating the symptoms of capitalism is the only real power he has. It's not like he has the ability to change State or Federal law if elected.
If people see his policies succeed it is very likely that not only Zohran might very quickly find himself in higher positions where he has authority and influence to change national law, but also the very democrats who claim such fundamental change is impossible might find themselves replaced by people who are actually willing to work for the people.
The establishment is worried that his success will spark a wave of actual progressive candidates instead of do-nothings who talk a weak opposition game and then cave under the slightest pressure.
It was extremely funny to watch the usa Democrats go from "trump is literally a fascist he will destroy America" to "welp, vote in four years folks. Follow evil directions until then".