Pickmans:
It's got nothing to do with street drinkers or any other kind of drinkers being less equal. drink dependency really knows no class anyhow. It is a case of people constantly disrupting occupations efforts regardless of whether they are "street" or not, though they do tend to be drunk I gather. That is the issue: Pissed people obstructing occs, as experienced in at least 3 I can think of. Not "identity politics". Not my opinions. But it's harder to deal with than slagging people off, I'll grant you that.
ETA: I agree that these camps are for street drinkers as much as anyone, perhaps even more so due to their alienated circs. But an unworkable camp from disruption and aggression is still just that. A camp that successfully deals with such challenges will basically be running as an unpaid branch of social services. Verily, 'tis Comrade Cameron's Big Society, and Bumface should thus declare allegience to anarchy. Or summat.