This is confusing to me as well. Surely the majority of blacks are not in favor of illegal immigration.
Your confusion seems well placed. Then again, the majority of blacks don't run the NAACP, and it might be argued that blacks don't run it at all. It was founded by white Lefties and a few figurehead blacks. It has traditionally been supported mostly by whites, especially liberal Jews, and perhaps still is.
The question, as with the unions, is not what is in the interest of the rank-and-file, but what helps the brass advance their careers and portfolios.
“Surely the majority of blacks are not in favor of illegal immigration.”
That doesn’t stop their self-interested “leaders” from supporting illegal immigration. White politicians are in favor of it, despite the fact that the majority of white Americans don’t favor it. Our country’s supposed political leadership becomes more and more elitist, and isolated from the people whose interests it pretends to represent.
You seem to be under the mistaken impression that the NAACP gives a damn about 'blacks.' The only thing the NAACP cares about is getting money in their pockets. They quit caring about black people a couple decades ago.