Let's try to actually have a discussion about this instead of shit flinging.
Firstly, the only white guy I know claiming that is Jonah Falcon. And far as I know he never aloows himself to get properly measured by orgs like Guiness records etc, so why take his word. People who saw his dick on cam said hes' big but nowhere near what he claims, more like 8.5 inches or so.
Secondly, let's look at the fact that there's no way to no what random blacks in third world countries might have, that we simply don't see for one reason or another. Look at this random crazy homeless black in Jamaica. He literally mogs every pornstar, black or white that I've ever seen, and he's not even hard. Who knows how many similar guys are out there. Never seen such a thing with a white guy.
There's probably some nigger living in a hut in the Central African Republic with a 15 inch dick we'll never see on camera, yet you would probably scoff at his unverified claims unlike Jonah Falcon who does the same thing.