You know, in the two Caminos (Frances) I walked, both during the summer. The height of pilgrim season, I simply did not see that many pilgrims getting overly intoxicated and bad behavior coming from the intoxication. Yeah, on a couple of occasions there were drunken peregrinos trying to get in the albergue I was in after being locked out after curfew, but it just wasn't that big a deal. They gave up after banging on the door a few times, and life went on. I saw some younger pilgrims smoking weed outside of one albergue. Not that big a deal. They were polite, young men. Heck, if I was their age again I might have took a toke myself. Again, not that big a deal and I never heard any hospitalaros complaining. I probably saw way more local Spanish intoxicated than peregrinos.
I understand, nobody likes an obnoxious drunk. Believe me, I know. I was a copper for many years. I dealt with drunks constantly, but I'm sure a small percentage of peregrinos getting drunk while doing the Camino will in no way cause albergues to shut down or people from volunteering along the Camino.
People will be people. That's just the way it is, and the Camino is only going to get more popular. Just look at the numbers.
I got pretty pissed myself in Pamplona on my second Camino this summer, but that doesn't mean I don't respect the history of the Camino or my fellow pilgrims.