Yeah. I think it was the biggest issue and was easily solvable, but the campaign was a fuck up through and through.
Across Biden and Harris they kept trying to steal a sliver of the conservative vote instead of just taking from the huge infrequent voter slice. They didn’t do anything to try to get that slice to vote for them, they just threatened them with Trump if they didn’t get out to vote.
They didn’t lead to the apathy - they pointed out the existing apathy would cost Dems the election.
You’re exactly right about people being excited for Trump and lukewarm on Harris, but that’s entirely on the Democrats for picking the platform and strategy that lost to Trump in 2016.
Harris had a notable and surprising lead when they announced Biden was out - then they changed nothing else. People didn’t just not like the candidate, they didn’t like the policies. They only changed the candidate and thought Trump was a big enough cudgel to bully people into voting even though that demonstrably doesn’t work.