¿Qué coño acabas de decir de mí, putita? Te haré saber que me gradué el primero de mi clase en los Navy Seals, y he participado en numerosas incursiones secretas contra Al-Quaeda, y tengo más de 300 muertes confirmadas.
You can't lump all white people together. This seems like a very specific cultural reference, possibly somewhere in America, and it absolutely does not apply to all white people and cultures just based on their skin color.
Yes, and the same could be said of any "all black people" or "all Asian people" joke. The important thing to remember is that it's just a joke with no real bearing on reality.