OK, so if DeSantis is the nominee, you would be OK with a Trump supporter refusing to vote for DeSantis in the general election... right?
Hard Core Trumpers will never
VOTE for DeSantis. They proved that with Cruz in 16, during the Primary and in 18 with his reelection in Texas.
Trump support is soft, other than the aforementioned subcategory which you're never gonna get. You have to pick up the Independent Voters. Particularly Women who HATE Trump and overcome their margin of cheating that the dems have baked in.
Sure, it's a TALL order but Trump can't beat anybody other than the most hated Woman in Politics, that's proven!