I don't think I agree completely with your police work, because you seem to be dead set on denying the political reindeer games that exists--whether marginally or disproportionally (as I tend to believe)-- and you seem to think that statehood is being looked at as a pure play bout of altruism or do-good-ism. I think these things are looked at through the lens of winning votes and elections and there are many threads/responses on this board with staunch democrats defending and admitting that while there is good practical and justification reasoning (as you also referenced) to couch this in, at the root it is a political ploy to counteract the GOP (filibustering, stone-walling, etc.).
But take those examples away (just the first two that popped in my head) and I'm sure with some effort you can fill two columns of whatever naked ambition politics that you can agree are just that (e.g. notions to pack the court, laws to make it illegal to give water to voters, etc. et al.), but the point remains-- politics and politicians exist to win power and then wield it. Policies are the means to gain the support-- to get voters-- to get people to voluntarily give them that power.
To Biden's credit, I think he is doing a good job of holding the line and not letting the other side win back any land that they lost and he is probably a bridge president for the next big idealism/populist candidate for the Dems. I can't imagine him getting a second term, but anything can happen-- Trump was elected in 2016, after all.