My very first thoughs:
Should alcohol be banned?
Did he just…
Yes, he definitely did.
I think you summoned up all positives, at least all I can think of at the moment.
It's true that alcohol helps people have a good time if they enjoy the feeling of being drunk. It can help make social occasions generally more fun and give people some good stories to tell in the future and that's all good!
To say it nice, I don't like this reasoning. Drinking is a common way to acquire some guts, may it be for jumping of a house (because of a bet (where the person sure was drunk too)) or for speaking to a girl/boy. I simply believe you should be able to do that without any help of drugs, because you should stick true to yourself (much philosophical and yes, I don't like parties) (maybe that's just my ideal of a human being).
Next reason would be feeling good, maybe because of all the bad thoughs will just fly away. Would be the reason for drinking out of despair, too. For the latter it's just my very own opinion that you shouldn't close your eyes from the truth and just try harder to solve your problems or seek for help.
But I can still understand you just need a good time from time to time. But it's my deep belief you can always have one without drinking.
And when you start drinking, you're taking all the risks and you know that. You can never be 100% sure you can control yourself this evening. (I'm very creative when it comes to think of improbable situations, which could still happen.) And even when you only destruct your own body, that's not really "I'm okay with destructing myself.". Because the only thing you're okay with is that you you don't suffer now. Nobody is able to predict what the Future-You will think of the Now-You for drinking and maybe give Future-You some serious disabilities.
Sadly, there is a lot of personal and philosophical opinion in my post. And the following sentence is that, too: People who drink alcohol on a regular basis are selfish.
You can disagree with my in many points (and if you have reasons besides your opinion I would like to hear it), but you can't deny alcohol's bad effects are way bigger than alcohol's good effects.
At least I'm able to have all the good effects of alcohol without drinking it and having any bad effects and I believe anybody could do this.
So, I would personally welcome a prohibition, but it's pointless. Alcohol is too much accepted by society, in contradiction to weed. The only effect would be having the (few willing) cops to look out for alcohol smuggle instead of doing something really useful for society.
A prohobition would cause a lot of butthurt and if someone with good ideals had done it (the only kind of person who would do it ever) the majority would kick him/her out of position before he can do anything more good and a corrupt one would take his/her place.
It would take about ten years to see the next generation grown up and see how they do live without alcohol (or illegal with, lol) and because nobody could predict the outcome, nobody (who wouldn't be against the prohibition itself first) would support such a wild experiment.
It makes me sad, but this tradition lies to deep.