Actually, I don't believe I addressed you at all. FTR one of the biggest gangs in my area is actually Latino.
There is a vast difference between being Snoop Dogg and dressing like Snoop Dogg. I would have absolutely no fear of the actual Snoop Dogg at all. I'm actually a Snoop fan. IJS. ...and Snoop was charged with murder. He was found not guilty as it was judged to be self defense.
However, as it was said upthread, making judgments based on superficial things like style of dress, skin color, accent is, pretty much, the definition of prejudice. Wearing a hijab doesn't make someone a terrorist any more than baggy pants make them a gang member, or a white guy with a shaved head makes him a white supremacist.
I also believe that I said upthread that EVERYONE needs to examine their own ingrained prejudices, not just the police. It is a systemic and societal problem.