I suspect the results would be skewed significantly by whether or not the questions asked seemed overtly political in nature. If you probe people in general quality of life measures and carefully avoid loaded language, you’d likely find both sides are suffering in the US in real terms due to cost of living and loneliness crises. These are trends that have been prevailing since at least the 80s and were accelerated by mass media and the Internet.
But tribal loyalty is a powerful force, so as soon as the questions or questioner appears partisan in any way, people form ranks for “their side” and you’d be hard pressed to get an honest response, least of all one that reflects badly on their team at the helm.