Yeah, that will be a tough one. Every Black American I know has high loyalty to in-group, in this case, the Black Community, which everyone is told is supposed to vote Democrat. A lot think to vote Republican is to betray a group which would be loyal to them.
I am not sure how I would proceed. Might look to emphasize crime hurting black communities, because government tells Black Americans they can’t have guns? I might even start pissing him off against government first, avoiding the political debate. Just bureaucracy and corruption, and waste and oppression. Baby Steps. Program his amygdala to be reviled by soemthing not clearly associated with Libs. Then one day, after being sufficiently programmed, blam! That repugnant item and Libs are connected.
If he is getting reinforcement from other directions, it could be hard. Loyalty to in-group is stong. Soldiers don’t necessarily even agree on the causes of the wars they fight, but they still try to kill each other with all theri heart, for the guy next to them.
I’ll think about it some more, and throw ideas out, but it is tough to do it without walking into a room, and meeting him and all his associations, to see where everyone is coming from.
I spent years in the black community and the social conformity pressure exceeds anything I have seen in any other community. If you point to a person as having misbehaved, eg., J Jackson, it won’t matter. If you portray a person or some action as betraying all blacks—it just might get their attention. If there is a perceived threat to the group—that might get their attention.
I just had a conversation with a state-level Repub political appointee. She reiterated a popular myth that Hispanics are a naturally better fit for Republican conservative leadership. That is a myth for the reasons discussed in this thread. G Bush was modestly successful getting votes from Hispanics—that is because he spoke Spanish and was perceived as one of the group. Nothing more complicated than that. It wasn’t due to conservative or liberal issues.
It might be unwise to interpret the previous election as being about the large percentage of American voters who get gov’t handouts, either, although there is a strong argument for that. Consider that. Demographics play a role if there are group loyalties. Consider that. Just my 2.0000 cents.