Street crimes in USA & internal political differences

Diversity - United States, despite petty internal political differences is very uniform and homogeneous to an outsider. The culture (or lack of it) is same, the food is same, the language is same and the arts and style are similar. In Europe language, art, food, culture and politics are widely varied which might be overwhelming for an outsider but makes things interesting. A person visiting Scotland on a pleasure trip won’t feel like he could have done visiting England while a person visiting New Jersey and Virginia as a tourist would almost feel both are same states (except the differences in street crimes).