Most of the Italians I met, Tuscans in particular, hated the EU and euro especially.  They told me that all Brussels does is charge taxes and passes stupid regulations.  Perhaps, they identified themselves as European (I dont know) but as far as a EU government was concerned, they detested the idea.

"In other words, European sentiment is already stronger than nationalistic sentiment within Spain."

You're own poll contraditcts what you are saying. Reading your poll, 59% of Spanish feel PRIMARILY Spanish.  Only 7% feel primarily European. It seems to me Spain has a long way to go.

Terry