And yet, somehow, over the last 20 years the crime rate in
the US has dropped tremendously.
Crime rates in all Western countries have dropped over the last 20 years. More interestingly, the crime rate in the US does not significantly differ from that in other countries[1]. Even taking the statistics from [1] at face value (they are probably skewed by various different definitions for 'crime'), The Netherlands has the same crime rate as the US, yet the prison population is six times smaller (per capita)[2]. Considering the various other Western countries doesn't make that better. Your assertion that the US suffers from --criminality in some American cultures-- seems unfounded.[1] http://www.nationmaster.com/graph/cri_tot_cri_percap-crime-t...
[2] http://www.nationmaster.com/graph/cri_pri_per_cap-crime-pris...