How would I be treated in Spain?

I wonder this because I would very much like to travel to Spain one day, whether it be Madrid, Barcelona, Pamplona or wherever. It seems like a beautiful country and it is after all, the birthplace of the language which the majority of us speak across the ocean. I am Ecuadorian-American. It is my understanding that the natives of my homeland are the immigrant majority in Spain (There are close to a million there. Although I heard a lot are moving back home due to the bad economy) and many Spaniards have this sort of xenophobia against immigrants and foreign visitors, especially those that come from South America (including Brazilians). I've heard the countless stories of racial slurs being hurled at South Americans and North Africans, deportations, physical attacks at people who looked "foreign", Spaniards giving foreigners hell in all of their airports only to send them back where they came from, their struggling economy and the Spaniards' frustration of the foreigners "taking all of their jobs". What would my experience be like if I travel to Spain? I have strong South American mestizo features so I can't definitely pass for anything else but what I am. Would Spaniards treat me as a "sudaca" and make my experience in Spain unpleasant, or can I get a free pass because I am also an American and perhaps if I pull that card out the Spaniards would give me a break? I have heard that they like American Latinos better than Latinos straight outta Latin America. Perhaps because they know we are there just to visit and not to take their precious jobs? How true is this? Any Spaniards or anyone familiar with this subject please help me.