If we go back to what the OP asked, his signature tells me the answer to the original question-that he belongs to a unrecognised constitution. He was told that ‘his people’ which I suspect does not mean black but rather a lodge belonging to his particular organisation. Which, I suspect, makes this a question of misunderstanding rather than a race issue.
I wonder how many of these misunderstandings and mixed words have escalated into the problems noted today. In Masonry and in the world.