Florida is one of the few remaining highly-urbanized states where people without a college degree (or a skilled trade with at least a few years of experience under their belt) have any level of economic mobility. Non-college people may be trending Republican nationwide, but this trend is largely driven by rural areas and small population centers. In most major metro areas, you're either a college grad in a very liberal white-collar bubble, or you're a non-college grad who's barely getting by and inclined to vote for the left. But Florida's economy is different than most heavily-urbanized states, in that it's less tech/STEM-heavy and offers more opportunities for non-college grads.
Nevada is (to my knowledge) the only other state that plausibly fits into this category, and even there R strength/D weakness seems more predicated on turnout patterns than voter persuasion.
Is this dynamic you speak of different in South Florida compared to the Orlando or Tampa areas?