While Roma might be highly visible to you because some beg in the streets or appear in crime reportage, Roma are still only a minority of the Eastern European immigrants in Spain. They are a minority even of the Balkan countries’ immigrants in Spain. You just don’t notice all those ethnic Romanians from Romania who don’t look particularly exotic, and who are quietly working hard in some industry outside the public eye (i.e. agriculture, or taking care of the elderly, or even the IT sector).