As definitions go, thats well constructed and easy to reason about.
But that isn't how the word is used by the media. Mamdani and Trump are both described as populists, but resistance to elites is hardly in their platform. Trump would never describe the democrats as "elite", and AFAIK resisting elites isn't Mamdani's platform either.
I can only presume that you properly are using quotes to mock the word "elite", and not because you're quoting Trump? Because I really dont think he uses that framing
Read the original definition you're responding to.
The "elite" is referring to "the establishment"
The "deep state" and the "swamp" represent the establishment. You also have people like RFK Jr whose entire claim to fame is questioning the legitimacy of scientific institutions.
Imagine "the establishment" taken over by the worst people as you define it. Perhaps Trump and all the Trump associates you dislike most. Steve Bannon, you name it, the worst people you can think of.
But that isn't how the word is used by the media. Mamdani and Trump are both described as populists, but resistance to elites is hardly in their platform. Trump would never describe the democrats as "elite", and AFAIK resisting elites isn't Mamdani's platform either.