I'm from The Netherlands. I won't throw a fit to get anyone to stop drinking. But it's pretty obvious that drinking, even one beer per day, on a societal scale leads to more obesity, more sickness, more violence etc. And the accompanying healthcare, police etc. spending.

Again, drink if you want. It's allowed. But don't pretend that it is unproblematic/healthy/natural/without consequences.

Just admit (or at least do not deny) that by drinking, you're making an (indirect) withdrawal from the community fund. Just like people who drive a car, people who hunt for fun, people who smoke etc.

That is what i want to say: Everything has consequeces! Nothing good comes without the bad, you will have to "pay a price" for everything... even when the "price" is a less enjoyed life ;-)

What really bothers me is that it seems that the western culture is (at least from my perspective) striving to become a totally clean, political correct, vegan, moral and abstinent society. Something like the society in "Demoliton Man". I really, really dont want to life in such an society...

It depends. Sure, we cannot be perfect. But not being racist has no downsides. Not drinking has no downsides. Same for several other of our vices.

So if there's no downside...why don't we stop?

That's where you're wrong : it does have downsides.

Alcohol is a social lubricant, and consuming alcohol with people is a great way to bond, and form communities.

It's not the only way to bond, but it does provide help regarding sociability, especially for shy/introvert people.