Statistically the electorate is stupid. I not only believe that statement is valid but true, and you by presenting one poll after another only confirms it.
I agree with that. There's not much to impute from political polling about what people want, especially not the Gumbo Party (so-called "independents" who don't want to be identified with any party).Gumbos can range from extreme liberals to extreme conservatives, so there is no way to poll what they want as a cohesive glob. The extremes can oppose the same things, but for diametrically opposite reasons.
As for R's and D's, I don't think most of them have any coherent understanding of what they want, either, at least not rationally connected to any particular policy platform. The play is predominantly one of marketing something akin to a video game - an alternate reality of conflict between tribes - and the marketing is is quite often a successful but dishonest con (see examples @TrumpdaGrifter). Because of this reality, it's difficult to create any good advice for influencing voters - how do you fix stupid?
The polls tell us something about the current status of the game, but they don't tell us anything about fixing stupid.
