While there were many detrimental factors Dems failed to properly address or apparently expected to be treated as positives, the obvious main one was attempting to outflank the GOP from the right. Every attempt to talk negatively about immigration or social issues was bound to result in more people taking Trump seriously instead of thinking Dems will do something. Everything about the illegal immigration rethoric was false, from the numbers to the effects, and Dems knew it - they decided they wanted to pretend this issue exists, so they can also play the right wing populist game. Pro-genocidal rethoric was also something right wing electorate knew Trump would do better, and some people disgusted with that rethoric decided not to vote. Dems wanted to become more right wing, to get that sweet ability to talk complete bullshit about everything and cover their inefficiencies with the mirages of bigotry. They believed their more "reasonable" right wing populist will win instead of wild maniacy like Trump - exactly as they did back in 2016, except this time Kamala had the chance to shape a different image for herself and she refused to do so. They gambled going to get away with moving further right and still getting elected, since Trump should have been very unpopular by all metrics they were capable of imagining. Instead, they gained no votes from the right and lost a fuck ton from the center and the left. Their arrogant and callous campaign sentenced many americans to likely death. They absolutely could have fought with all they had and ceded concessions to their voters instead of donors and "allies" like Israel. They could have went left instead of right, as many of us hoped after the Walz VP pick. Instead they lost, as the worse and less dedicated right wing party of US. They're to blame for what's going to happen next, not some abstract impossible to be pointed with finger voters. Yeah, Harris being a black woman in this deeply conservative society was a detriment to her chances. That was outside of her control, unlike everything else she did or didn't do.
I'll be honest, unless most of the Democratic Party gets purged, it's probably meaningless to vote for them (assuming you even can) in 2028. There couldn't have been easier victory to be had, and they fucked it up. They should have called Trump a pedophile, but were afraid that their own pedophiles like Clinton would get hit with a shrapnell. They could have promised to tax the ultra rich, like Elon Musk down to the fucking ground, but they wanted their money themselves. They didn't want to promise anything big, knowing fully well that no one would believe them with their terrible track record of implementing any meaningful and radical chances, while Trump claimed everything was the fault of immigrants and foreign adversaries and promised radical actions against them. Believing that they wont pull the same bullshit in 2028 is naive, they will refuse to learn anything from this catastrophe, move further right and campaign on "returning to the norm". Fuck them. Let the greedy fucks burn, just as you will because of them. USA needs a third (and fourth, and fifth...) party, and it needs it now instead of in 4 years. Dems should be completely discarded, and I hope the pain you will feel in next 4 years, pain that they could have prevented but chose not to instead, will convince you as well.
Yeah, I'm done, sorry for the rant. Posts casting blame on voters instead of Dems majorly piss me off right now.