To be clear -- there's no "good" answer to this. All the possible motivations are terrible. But they can be differently terrible. For example, while the most likely explanations are political, there are some apolitical rationales I can imagine, namely:
- It's a grift. Scammers have discovered that gullible White people are thirsting for Black Trump supporters to exist, and this is an easy way to exploit that hunger for cash.
Someone could be interested in running this con with no particular interest or concern with the political ramifications.
But there are quite a few different political motivations I can imagine as well (and these might all occur in conjunction):
- The purpose is to support Trump by galvanizing Black Trump supporters -- showing them that they're not alone, there's a community, and they should be out and proud.
- The purpose is to support Trump by galvanizing White Trump supporters -- showing them that "not all Blacks" oppose him and that therefore claims that he's racist are just ginned up by the liberal media/BLM Marxist/Soros network.
- The purpose is to sow chaos. It's not really about supporting Trump per se, but about generating dissension, fraying bonds of trust, and inculcating a sense that everything one sees is a lie or at least a potential lie -- sentiments which, if strong enough, are toxic to functioning democratic societies.
Again, all of these "motives" are terrible things, and do real damage to the vitality of the American democratic system. Which is why, while I give Facebook some belated credit for expunging the accounts, it is absolutely essential that they take a firmer hand on this sort of problem.