Sorry but the sheer amount of black trump supporters I've met in the south would call this BS, and even setting aside Maga, there are plenty of black Christians that are conservative enough to still vote for Taco Orange. On the flip side I've met more people who are white or Latino that hate this dude's guts to never vote for the asscunt.
Remember that the electoral college is not a direct vote. As long as there are more votes in a particular state for Candidate A over Candidate B, A will get all of that state's votes. If this happens in every state, then A gets the entire nation's votes without any representation of anyone who voted differently.
Also remember that anecdotal evidence is irrelevant on the scale we're talking about.