"If use of the currently illegal drugs was legalized, most of property crimes committed to obtain drug money would no longer occur. And the rate of murders and serious assaults (many of which are related to drug traffic) would also drop dramatically"

Why do you think the lowlifes are going to get a job to earn money to buy the "legal" drugs. Maybe they won't have to steal as much but it is not going to change their attitude towards private property, or life in general, or the value of YOUR life specifically.