Not necessarily a ton of votes are by clueless people who decide based on what fast food they had on their way to the polling booth. If he's not on the ballot he would lose those people. Note that I support these people's voting habits as it is more class conscious than being an ideological dem or rep. The actually motivated Trump voting base is surprisingly small compared to how the lib media presents it, that's one of the reasons the Republicans keep getting shallaked on state abortion votes.