The most consequential issue for voters this past election was the economy. People are feeling inflation, whether that's through food prices, rent prices, or all of the above.
Harris didn't campaign to that. Instead, she catered to families with children - a diminishing subsect of society - and small businesses. Yes she advocated for a first time home subsidy, but no young person believes they'll truly have enough money to own a home in their lifetime.
Harris ignored the working class. And so they ignored her. Plain and simple. A political party has to fix its constituents' problems, or at least lie about it. She did neither.
Stop making this about voters.
Do you really think Harris' platform was all that liberal?
Did you listen to her DNC speech, where she insisted on having the strongest military in America's history, not mentioning Palestinians plight in Gaza and the West Bank, and promising to have a Republican in her cabinet?
Harris actively chased after the right and their voting base right up to election day. Democrats did nothing to counter Trump. If they had, they would have actually followed through on the Tim Walz pick and promulgated actual, progressive policies to win over the self-interest of their base.
Harris using a stick to get her base to vote was not enough. People need carrots. Her campaign was utter shit man.