You know the answer very well- Democrats tend to be urban and Republicans   

You know the answer very well- Democrats tend to be urban and Republicans rural or suburban.

Large cities tend to have areas of poverty. Economic status has a definite relationship to crime.

Cities have better infrastucture, public transport, etc.

"Defund the police"? Who said that here? Does AOC or 'the squad' post here?

The police should not be the only social response organization. A hammer isn't the proper tool for all tasks, no matter how fine the quality of the hammer.

Research 'critical response' organizations. 

Watch what happens in the next decade. Rightist violence has been rising since the 1990s.