I think a lot of people at a lot of socioeconomic levels are leaving densely populated cities. People are fleeing New York partly because it's unaffordable to most, and partly because it was a hotbed of Covid 19 and is being kept from fully opening again by the Governor. I think anyone who can work remotely (which covers a large swatch of jobs and salary levels) is moving away. Even people who don't work remote are looking to relocate to smaller towns and suburbs. Gentrification has already been driving New Yorkers to other, more affordable cities for a long time. So once again painting this phenomenon in black and white class terms seems like an attempt to wedge it into a preferred narrative.
I myself am downsizing, looking to move somewhere cheaper, selling off a lot of my possessions so I don't feel trapped anymore and loaded down. I am selling some of my things as a side hustle to raise the money to move away. I am taking advantage of the opportunity to work remotely to get to somewhere less stressful where my cost of living is reduced and therefore I don't feel chained to a job that is taking a large toll on my mental and physical health. I will not be moving abroad or to some kind of luxury tech-protected compound, but rather an apartment similar to mine in a more affordable area where I will be able to experience more of nature and breathe for the first time in many years.