This really itches my mind.
Forget USA legislation, as a Portuguese you should know the history of your own country ffs mate! Especially the colonial aspect of how you and Spain set up an entire social class system based on grading the color of skin from light to dark that has stretched all the way from California to Southern Argentina. You *should* be aware of how your country and your Iberian neighbor have a history of racism and slavery as well in the colonies - its not just the Brits and Dutch.
It blows my mind that someone from Portugal or Spain could actually claim historical ignorance of other culture's racial issues when your own nations spread the whole 'light skin=upper class, dark skin=lower class' social class system to the New World. These social classes did not spontaneous evolve naturally, they were installed by the Portuguese and Spanish. Really disappointed in some of the Iberian peninsula posters in this thread.