I don't have any evidence for this but purely speculation on my part: racism can explain a good amount of that. Biden has in the 90s voted for "tough on crime bills", he is the definition of political establishment, and is a white man from Wilmington. Obama definitely is not textbook underpriveleged but he doesn't have those points that biden does

Its not idiotic, because democrats have had numerous opportunities to enshrine abortion and contraception into law, while controlling both the legislative and executive branch. Republicans are perfectly able to pass their abhorrent laws, but democrats seem to not be able to pass good legislation even when they control the government. Until Roe was overturned, this state of affairs was actually very beneficial to democratic politicians, because they could recycle abortion as a rallying point every single election.

Hot take: the narrative that politicians do not understand technology due to their age is giving them too much credit. They have entire offices full of staffers whose entire job is to explain these things to them in ways they understand, as I am sure they have for some of the more important things. They just don't care because their purpose is to serve corporations, not the public.

See this kind of shit is why I pirate, not because I can't afford to pay $10 a month. When the $10 for a lot of content becomes $10 per month per piece of media you like, and you can't watch it on your platform of choice, and you can't watch it on a flight without paying more or not at all, this makes the $5 per month I pay for a VPN sound like a far better service.

Why is it rooted in Nazi propaganda?

Mate I don't think most russian people are reading an obscure, western primarily english speaking social media site, and the ones that are are probably more likely to be against the war.

A lot of transit can just be electrified with overhead wires

If by "left" you mean democrats then they will not do this because it is not what their views are. They are ideologically as neoliberal as Reagan and Thatcher. This is part of why they don't do as good of a job opposing the far right as they could, because they only exist as long as their only opposition is unhinged far right politicians.