"Yanqui men are the only men, moving in shorts in CABA ; And speaking Spanish in the worst possible accent".
Not true any more. I see Argentine men of all ages in shorts these days. Never used to be true but it is now. When I came here suits and ties were very common. Nowadays I even see some Argentines in baseball caps. As for the "worst possible accent", that really depends. I've met some Americans who are very proficient in Spanish. If the American is making an effort to speak Spanish he surely deserves some credit.