It's a bunch of hooey.. white balls were always the stricken balls in billiards. Probably because you didn't have to bleach them when they were ivory turned, therefore making them easier and cheaper to purchase, as opposed to a "colored" ball. So when "pocket" billiards was invented, the white cue ball was probably just a natural selection. You had colors, and stripes. The eight ball being black just makes sense when you think about it.
I think the black bowling ball knocking down rednecked whitey's is kind of funny. I never saw it that way till the post. But again it makes sense, since bowling alley's back in the day were dimly lit. White pins were probably easier to see.
JV