Ehhh, I don't know about chemical sterilization, but I am curious whether Romani children brought up in these roving camps even go to public schools? And are Romani children allowed in if they do want to attend, for that matter?
Besides the cultural factors, a few of the complaints I've read there so far remind me of complaints leveled at the poor right here in the US. The rowdy households, for example -- unless the Romani are trained in some kind of ululation technique, seems like all the shrieking in their households (assuming some are trying to make do in a sedentary lifestyle) could be a simple facet of poverty. What I mean to say is, I wonder how much of the problem is cultural, how much can be traced to poverty, and how those factors intertwine?
Until I learn more, it seems the best hope would lie in giving individual Romani an incentive to stick with a job and earn a decent living. Discrimination (e.g., during hiring interviews) could effectively prolong the problem -- a Romani tossed back into the roving band is just one more who might teach their kid all those pickpocketing tricks.