Trump won Michigan, and I will bet good money his votes all came from the areas with very little violence as opposed to the area that voted for Hillary. What you are describing is the results of 60 years of Democrat local and State control of these states. The Democrats welfare entitlement (war on poverty) programs in these area has done that which racism, the Jim Crow laws and the KKK couldn't do, those programs absolutely destroyed the black families. The violence in those areas is not because of the guns it is strictly economics, those individuals are just angry at life in general.