Going against Trump means going against the policies that make America great. DeSantis has mirrored every Trump policy here and that is the foundation for his support. Policies Floridians have demanded.
Florida has always gotten a bad rap but over the last 4 years we have had it better than any state in the nation.
We're not going back for anyone or anything.
Basically it's like babyfaces who turned heel against Hulk Hogan. You don't fare too well going against the most beloved superhero of all time in wrestling and people, even if they get "tired" of Hogan, will be won over to his side again with his actions.
Same example for Trump vs DeSantis. Nobody knew who DeSantis was until Trump and even still, Trump is the party majority by an uncountable margin.