Funny thing. I'm a white guy and no doubt that made plenty of things easier. Curiously, I grew up in inner suburban-Toronto of the 1970s in what was for that time a very diverse school environment and somewhat diverse neighbourhood. Anyone much older remembered a far less diverse country and city and had the habits of one. These elements made it quite a mix of experiences:

1. White store detectives had grown up surrounded by white people and thus were occupationally suspicious of white teens anyway. Corner store owners were all East/South Asian and suspicious of all teens. I was looked askance at by both.

2. I took punches for not being Catholic, Pakistani, what have you. [Different incidents...]

3. I have been verbally but sternly dissuaded by families of South Asian, East Asian, and Jewish origin from dating a daughter of said families.

4. I have been verbally threatened on the street by kids of another origin. 

All long ago, to be sure.