There are absolutely enough people on "their side" in the sense that there are plenty of people on the side of working people, way more than enough.
The problem is the actual leadership of the Democratic Party isn't on the side of working people at all, and is actually actively hostile to those in favor of classic labor policies.
Don't get me wrong the other side is absolutely not on the side of working people either, that's more than apparent.
The entire dynamic we're seeing right now is a battle between two competing groups of elites. More on that concept here: https://www.compactmag.com/article/doge-as-class-war/
But with those caveats out of the way, a bona-fide labor movement could make short work of all this bullshit. Unfortunately the purpose of the modern Democratic Party appears to be to occupy the place in our system where a labor party is supposed to reside.
I agree with a lot of what this article has to say, and it's true that the politics of the US would be quite different if one of the major parties were a bona fide labor movement. But they're not, and I worry that the label of "elites" makes it harder to see why they're not. It's genuinely challenging - although I agree sometimes necessary! - to explain to someone who's really fired up about racial justice or climate change that they're not representative of the public and their concerns need to take a back seat to kitchen table issues.
It's also not obvious to me that a bona fide labor movement would take a particularly strong stance on an executive order curtailing independent agencies. Being invested in the details of how paper-pushing agencies are structured is a very elite concern.