The last election disprove this completely. There will be plenty of voters who disapprove of trump but see him as the lesser of two evils against whatever baby killing socialist the Democrats nominate and a billion dollars worth of negative ads are ultimately run against.
In the key states that got Trump elected the turnout was low. It has been famously said that Trump didn't even reach Bush 04' level support in MI, OH or WI, three states that went his way and several other contested states that didn't. It stands to reason that many voters who actually witnessed the campaign just didn't show up at the polls rather than actually decide between those two in 2016. I suspect those non participants leaned Democratic.
