Of course there are!
you're probably not racist or hateful toward people based solely on race. Not the most tactful question, despite the explanation.
Either way, at my favorite LFS, while helping clean a sump, a mini "rush" of people came into the store. I helped the owner assist, catch fish, field questions, etc. During this small rush, there were:
1 "white" couple in thier 50's
1 middle age interracial couple ("white" and "black")
1 middle age asian man ( i think he's Vietnamese)
1 young/middle age "white"woman with small child (5-8yr. girl)
1 middle age "white" man with child (8-10 yr. boy)
1 middle age "black" man
A pretty good example IMO that shows that even on a lazy Florida Saturday afternoon, a good mixture of race, age, sex, and probably religious affiliation shows up to buy fish. I think that people of all types appreciate fish keeping as a hobby.