nobody is claiming that making drugs legal or decriminalizing them would solve crime.
drug addiction is obviously implicated in poverty, in broken lives, in dysfunctional families, in shattered communities, etc.
society won't magically be healed and it won't address the root cause of these issues (hint: it's seldom drugs themselves).
not punishing someone who falls foul of drug addiction, in an old testament moralizing way, and not further ruining people's lives who are aleady at 'rock bottom', so to speak, would probably be a good thing, though.
isn't it weird that all the medical professionals, drug counsellors, addiction experts, etc, think that punishing drug addicts is the absolute worst strategy? all you do is push someone further out of society and deeper into their life-threatening problems.