Perhaps these situations just aren't as dangerous as you think? I can understand not wanting to see drug deals happening out in the open, but it's less of a threat to your personal safety than crossing a busy street.
Given the fact that I live happily in Portland, I think it's safe to say I don't find these situations necessarily dangerous. However, I'm aware they exist, which many of my neighbors are not.
Again, I do think voting patterns would change if people were simply aware of their surroundings.
