No sir. I want to shift the blame to where it most likely belongs, or to what is certainly a very large factor in the equation we attempt to discuss here. A large part of the blame falls upon lousy policy and law, as pointed out for more than a decade now by LEAP, Law Enforcement Against Prohibition. They have recently changed their name, but that's beside the point. I do not try to put a numerical value on the role of prohibition in the increase in hostility towards police these days, but it is a large factor.
Keep in mind that the gang culture you mention, an excellent point by the way, is supported in part by the sales of illegal drugs by those gangs. That means that IF the prohibition were repealed, those gangs would lose a significant source of funding.
That also means that IF the prohibition had been ended 20 years ago, there is some chance that we would not be having this conversation today, as those gangs would have lost significant funding 20 years ago.
It happened with the repeal of the Volstead Act, and it would happen too with the drug prohibition.