Trump didn’t tell Disney to move out of Florida anymore than DeSantis threatened to build a prison next to Disney World.
But hyperbole aside, Trump is simply pointing out the truth of the matter. Disney is not going to just give up without a fight. DeSantis is making empty threats that would be difficult to pull off and which would have negative unintended consequences if he were successful.
DeSantis has either not bothered to think this through, or more likely, he’s just engaging in a war of words with Disney, for the sake of optics.