The chart I found most interesting was "U.S. Political Ideology Identification, 1992-2025".
Conservative has remained more or less static the whole time, 36% in 1992, 35% in 2025, which I guess makes a kind of sense, while moderate has dropped 10%, with a corresponding increase in liberal.
I would personally call this social progress, though of course conservatives would disagree. On the other hand, the specific political policies supported by self-described conservatives and liberals has sometimes changed radically over those years, which can make my eyes roll and my head spin—for example, I remember a time when conservatives were free-trade internationalists—so I think it's a separate question whether US political policy itself has become too conservative or too liberal. In any case, the leaders of both parties tend to advance the interests of themselves and their donors over the interests of their voters or the public at large.
I've come to see political parties, political ideologies, and even religions more as social groups than as repositories for specific beliefs, where the identity and attitude of the members is more important than consistency, logic, or truth.