I think that depends on how one defines good, I think people are struggling more today than 20 years ago, but at the same time, the average struggling American has it way better than the majority of the rest of the world. Having said that, and Interestingly enough, I think people who struggle in the US are doing so because of the status quo being what it is and doing what it does, so people wouldn't have known a good life that they could compare against their current life without that empire status, which is what is hurting them now.Yes. The American middle class is basically gone. Most people live check to check. Companies hire illegal immigrants because they don't want to pay Americans a living wage. Our cities are riddled with crime and homeless people. Covid destroyed trust in the authorities. The idea that "things are too good" for the average American may have been true 15-20 years ago, but not anymore. Living standards have gone to shit.
So, when people think MAGA, they think of turning things back a few decades, but not really to get rid of the source of their ills today, which is the same source of their greatness back then. It's like a junkie who has lost everything to drugs, and wants to get rid of that state but who at the same time chases that same sensation of the first high which was mostly pleasure, but can't recognize that they're one and the same thing, the source of the misery and the initial pleasure. And it's an adequate analogy as just like cocaine for instance, its availability to buyers means a lot of misery elsewhere in the world.
And in my experience it is an inevitable state of affairs, in reality when it comes to the greatness of the US, all both parties ever argue about is how to maintain it, with different approaches but they both seek the same thing.