Yes, I believe so, too. My theory is that they have no love for the U.S. because they feel like they don't belong here and also because their parents have taught them to see themselves solely as Mexicans and not as Americans, even though they were born in the U.S. Also, many of them do not integrate into mainstream American society and don't identify with American culture, some actually see it as something foreign or alien to them. I have integrated successfully into American culture and feel pride and respect for this country. Sometimes, I'll admit, I do side with Mexico, especially at sporting events but only because Mexico is such an underdog or has mediocre athletes, that I do root for them to kick the Americans' ass at least once.