"Vote for my shitty policies or the other guy will have shittier policies" is not a platform.
The point of a democratic republic is that elected officials enact the policies those who elect them want. If you don't offer to enact those policies you don't get elected.
Yes, non-voters were stupid to not vote for the lesser evil, but the Harris campaign violated the very basis of democracy and thought they could simply use Trump to bully people into voting for them.
Imagine a system where a fascist Boogeyman is held up every election and people reliably vote against them without regard for who they vote for. The other party could put up whatever shitty candidate they wanted whether they espouse the views of the population or not.
Not only is that not at all a fucking democracy, it was the documented strategy of the Democratic party! Except it doesn't fucking work, which they should have learned in 2016.
In 2020
Biden: 81.2 million
Trump: 74.2 million
In 2024 so far
Harris: 67.0
Trump: 71.9
Trump got about the same amount of votes. Dems lost 14 million votes.