Unfortunately, people have bought into the idea that enforcing laws which are disproportionately broken by the socially disadvantaged is tantamount to oppression. Vandalism and property crime tends to be committed by the poor underclass, often by racial minorities to boot. So people don't want to enforce laws against those people, whose lives are already kinda crap, because they think it's just oppressing them further. Unfortunately, while this thinking is well-intentioned it has really cost society in general dearly.