We covered this in the election fraud post, but if independents voted for Trump instead of a horse who has no chance of winning, then the DNC would have to cheat that much more, which would be a little more obvious.
It's the American Idol effect.
Voting for Team Biden, Team Trump, Team Hillary, etc. shows a collective mentality -- that you aren't supporting the person as much as belonging to a group (tribe) that supports the person. Sometimes you pick your team based on all the wrong factors. You just like that team because you have been part of that team in other contests.
IN 2016, lots of people voted against Hillary -- many of them by simply not voting for anyone.Team "Anybody but HER!"
This is what happens when most people don't care enough to learn about each candidate independently from the media -- who, BTW, always endorses a candidate. Can't expect unbiased reporting from them, even before the Internet.
Most voters can't articulate why the chose the person they are casting their ballot for. This is why we've devolved into tribes. I'm voting for the guy leading my tribe because I'm part of the tribe. Can't get more Lemming-like than that.