It's euphemistic avoidance of saying directly what most people probably know what he means.
Having a "touch of the tarbrush" was okay, though would probably be explained away by claiming French ancestry etc
Unsurprisingly, the same people who tend to use such euphemisms are the same folks who'll argue against "political correctness" - as life would be much simpler for them if they could get their bigoted message across in a few words - without getting called out for what they are.


