None of that was the argument at all. It's not that there isn't black mermaids, it's that it's a specific character they're erasing to make it something else.

Instead of actually discussing the reason, they invent one and ... wait ctrl + f "motte and bailey" Okay yeah, someone has brought up motte and bailey already. A very annoying and tiring thing to deal with because it's a circular conversation that never gets to the reason.