They were told to vote for Biden so they voted for Biden, even though he is also a sexual predator, and a well-documented racist monster just like Trump of course.
Biden isn’t a sexual predator that is literally a qanon conspiracy theory. He was racist in the 60s. When you know better you do better. People actually sometimes do progress over 50 odd years.
People don’t vote for Biden because they are told to the functional design of our winner takes all voting system is that there will always be 2 major parties because any third party that gets a substantial chunk of the vote ends up splitting the vote with the party it is most like resulting in the opposite side winning. If you want something better there are about half a hundred better systems like ranked choice voting that would allow people to credibly vote for third parties without throwing away their vote.
Pretending we are just helpless because people are sheep just teaches people to be helpless instead of recognizing they are acting rationally given bad options.