Yeah, I think it is kind of an intractable problem that would have to be attacked from both sides.
Some cultures, let's face it, have a lot of entrenched malignancy.
I'm sure a lot of it is because of historical persecution - if the law doesn't protect you, why should you respect it, and if outsiders won't do business with you, how else are you supposed to make a living?
That said, I'll bet a Roma community that approached civil authorities and said, "Hey, we want to settle down and build a stable, law-abiding community" would find help available.
Heh, I'm not so sure they would find help available, with the general consensus I got from the people I came across in Oxford, anyway. There is so little trust from both sides that just one side offering an olive branch would not work, IMO. I have no idea how the issue can be solved, really.
Oh please, with the number of otherwise good people with a viterolic hatred for them? Yeah, I don't see that happening. Not when people still want to exterminate their culture, if not the Romany themselves. People can make excuses for the murder of Romany people and things like refusing to bury a Roma baby because they don't see the Roma as really being human. And the people doing this? They may be otherwise the most kind hearted, good people it's possible to know.
Sure, some groups could try to do something like settling down in a legal manner. Opperative word here being try, because I'm sure others would do everything in their power to deny them such permits. In fact, some already live in legally settled communities. That doesn't stop officials from harrasing them or outsiders in generally from harassing them. So, no, settling down isn't the answer. Plenty of Romany in both the US and Europe aren't nomadic but keep as close to their culture as is otherwise possible. It does nothing to change a lot of peoples minds in Europe, and a lot in the US still discriminate against the Romany. It's not a matter of them assimilating, because plenty do. It's a matter of them being on of the few groups it's ok to still hate.
I think you're right in that it wouldn't be as easy as walking to civil authorities and saying they want to settle down legally. I don't think the people I came across see the Roma people as not human though. I think they see them as a culture whose ideologies are way too different from anyone they know.
For example, especially in Oxford, where education is prized as a top priority, the Oxfordians are baffled by the decision to pull their children, especially the girls, out of school by around age 12. They see this as something which perpetuates an unhealthy cycle of uneducated people.
Then there's the Romas' views on women, wherein girls are supposed to be married by age 16 and tend to the babies and the home. They're not allowed to have jobs. I remember there being shock over the courtship ritual of Traveler teens which is called "grabbing". "Grabbing" is where a teen boy literally grabs a teen girl and corners her into kissing him. The girls don't seem to enjoy the practice, but go along with it because, simply, there is no other alternative. People tend to see the way Traveler girls are treated as oppressive, and several of the girls have spoken up about being unhappy with the roles they're given, which, again, led to more hostility towards the culture as a whole from the PoV of outsiders.
I feel like it's a culture that isn't understood by many people, so it ends up getting judged harshly. Maybe if there was some sort of open communication between both sides it would help bridge the gap, but from what I've seen, the hostility runs deep, with both sides looking down on the other because their way is "better".