I've heard democrats actively calling for PR to be made a state for several years prior to 2020.
I didn't notice much of a partisan divide in PR statehood advocacy until the last few years, yes prior to 2020 but after Obama was out of office. Maybe partisanship had gotten to it before then but can you point me to information supporting that? I am happy to admit that 4 years is "a lot longer" than 1 year but that isn't the timeframe that your post had me imagining. If it was what you meant, then I suppose there is no true disagreement between us on that point.
As mentioned earlier, presidents from both parties have long promoted Puerto Rican self-determination and statehood; the most recent Republican party platform reads, "We support the right of the United States citizens of Puerto Rico to be admitted to the Union as a fully sovereign state after they freely so determine."
I certainly don't support either option right now, no. In the long run, maybe giving it back to Maryland, but frankly, we managed things just fine without it being a state up until now, and it's only been a political issue in the past 20 years or so.
The DC statehood movement is a direct result of the failure of the DC Voting Rights Amendment (which would have given congressional representation but not statehood) to be ratified by the states after passing Congress. The seven year time limit expired in 1985. (I don't know how bipartisan that passage was, but it had to be to some extent based on the total up and down votes.) From what I can gather, the statehood movement was popular among DC residents but not taken too seriously elsewhere until it picked up steam in the past decade.
The idea of the state not acting to protect property is just one issue. They could also stuff like unequally enforcement against protestors, not comply with requests for law enforcement resources. I recall some comments from national review last June when Trump was doing a photo op and needed to order the police to clear away some protesters, which the DC mayor didn't want to do. And the issue was that incidents like that could become more common if DC police were no longer under federal control. That's why the capital was moved to an independent district rather than being a set city in the first place.
I know that the clearing of Lafayette Square etc. was done with officers from various federal agencies and not the DC police, but I did not know and was not able to immediately confirm that the mayor or DC police were asked to do it and declined. Could you give me a source on that? In any case, I'm not really impressed by that particular example of "need".