Black crime cannot be caused by:
 
Poverty
 
Stress
 
Racism
 
Or culture
 
And what even is the culture explanation anyway? What culture do rich blacks and ghetto blacks share beyond maybe music? Would you say music causes crime? No. But that's almost what you have to do if you cling to this "god in the gaps" style argument.
 
Which is ultimately the point I have to make to you, this middleground of yours is illusory. It's carved into a creche of ignorance and really isn't much different from what the cuckservatives would say about race. You either must be a social constructivist (fancy way of saying SJW ultimately since adding racism as a social explanation is barely a step away), or a race realist.