You can ban them, but your ban won't be any more effective than the ban on alcohol.

It's easy to get pretty much any drug you want.. especially in Amsterdam.

All the ban does is moves the market underground, gets organized crime involved, makes it much harder for users to tell they're getting what they paid for (possibly leading to all sorts of adverse effects like overdoses), and ruins people's lives when they're thrown in jail.

We know drug bans don't work and are counterproductive.

It's sad to see the Netherlands buy in to anti-drug hysteria after being one of the leading lights in constructive drug policy and harm-reduction for so long.