America is a big place. Maybe your area is better. Or maybe you aren’t aware of it in your area. But the number of neighbors in my area who have had mentally ill people (probably homeless) come to thier door sayimg they live there or what not is pretty high. And I am out in the suburbs. Combine that with the yearly stories of a mentally ill person with a history of random violence arrests who kills someone and it’s no suprise people fear. A large part of the population lives in areas like this or in cities. But not everyone for sure.