They ALL said that, did they? Not just various pundits and politicians and various people online that add up to maybe a few thousand? “They” don’t speak for everyone. Plenty of people are too burnt out to give a damn anymore. Plenty likely didn’t vote for other reasons, like reacting to the bomb threats sent to Pennsylvania polling places. Plenty didn’t vote because they foolishly thought their vote wouldn’t make a difference or that Trump had no real chance this time. And yes, plenty of people think Biden and Harris are awful. Put all of those together and it probably could’ve been far more than 15 million.