I hope nobody gets offended by this, not condemning alcohol or anything, but I personally feel that this is true RIP
I wouldn't say alcohol could destroy a nation... Maybe a liver, though. Either way, it's personal preference. I like getting smashed as well as stoned. However, I will acknowledge that alcohol is far more dangerous than weed.
I live in a country where alcohol is more of a way of life and we seem to be doing alright Alcohol isn't going to kill us all and lead to the collapse of society as we know it, stoners need to stop demonising it so much.