Regarding les Roms, I encourage you to read FrédéricLN's comment to this post and then compare with Pierre Lellouche's proposal to take up the problem of les Roms at the European level. Lellouche is guilty of precisely the amalgame that Frédéric points out.
This is not to say that the problem that really preoccupies Lellouche--crime by Romanian immigrant minors in Paris--is not a real problem (I myself was robbed this May in Paris by two young thieves who may well have been Romanian). But the incident in Loir-et-Cher that escalated a police matter to an affair of state had nothing to do with Romanian immigrants. Here we have a case where the terminological confusion is so great that bad policy is likely to result.