Google “Homogeneous cultures”. One of such cultures’ characteristics is being accepting of cultural nuances like race.
In simpler terms, if you grow up with people who only look like you, your views are limited.
Don’t get offended. Just be proud for having had the experience to know more.
Juice bars. Bowl, salad, greens type places.
The more organic the better. Every city has a few in my experience. Ask locals.