The only significantly statically impactful group of "non voters" is the population that was unable to or inconvenienced heavily by voting.
Meaning the major majority of voters that didn't vote were either unable to because of other obligations (work, childcare, etc) with a small subset of that being people that were no motivated enough to deal with the inconvenience of visiting a poll line (4hours in line) after a 10 hour shift.
These are the vast vast majority of people that did not show up. Beyond that an even smaller percentage was the "protest voters' that even if 100% of which went to Harris she still would have lost.
I guess I just want to say "in conclusion" that the vast majority of voters that didn't vote were giving you your Starbucks or your Taco Bell.
I think we should spend less time blaming voters and more time being critical of the politicians and party that gives zero reason for the working class to "risk" their shift for.
No one's gonna "risk a shift" for the policies and messaging that Harris communicated. You don't get people to "risk their shift" for voting for a lesser evil.
Sometimes i get the feeling that voting on a tuesday is working as expected: to keep working an poor people from voting...
Germany has voting per defintion only on sundays, and (at least where i live) the voting booths are everywhere. You can vote either per mail, or from 8:00 to 18:00 at a booth, and i never had to wait in a line to vote, and i'm in my 40s