A lot of other commenters have mentioned things that are correct but I would like to add another that I haven’t seen mentioned:
A lot of people didn’t vote thinking that there was no way the people who do would let it happen again. With the exception of 2020, IIRC, the “winner” in pretty much every recent election has been the non voting block. Meaning more people don’t vote than do.
A lot of other commenters have mentioned things that are correct but I would like to add another that I haven’t seen mentioned:
A lot of people didn’t vote thinking that there was no way the people who do would let it happen again. With the exception of 2020, IIRC, the “winner” in pretty much every recent election has been the non voting block. Meaning more people don’t vote than do.