no you cant have my gamertag
You are basing this entire thread on a stupid premise.
You don't get to ask me why something should be legal. Everything starts in a state of legality and it takes a concerted effort to prohibit it. So the burden of proof lies with the one who claims something should be illegal.
Your claims are stupid and wrong. It does not kill brain cells. The vast majority of drinkers are addicted. The vast majority of drinkers are not insane. And the vast majority are responsible enough to not let it ruin their lives.
Our society sucks because of people who look to scapegoat things like alcohol instead of blaming the idiot -blam!-ing up their life.
But if you really want me to defend alcohol,
Moderate drinkers live longer, are happier, more social, have higher paying jobs, are more intelligent, and overall are better people.