Gypsies is a wee of a special case tbh. They've a very weird honor system that makes it hard to integrate them. We're trying to do that for decades and results are mediocre so far. I've heard crazy stories from people working at NPOs with them.
The only thing we didn't try yet is forcibly taking away children and putting them in boarding schools. I know it sounds terrible, but those people just don't want to integrate. Which is why may look mistreated. But in reality it's vice versa - they mistreat anyone else around them.
Of course, some gypsies do drop that way of life and integrate. But then they just look like normal citizen. Thus there're little "good gypsies".