All I can say to that is that awareness of Spain's actions in America after 1492 is fortunately better in Spain today than it used to, but unfortunately still not  very widespread. And our lack of awareness is necessarily willful, given what Columbus himself wrote about his own trip (an old thread on that).

A society committed to the notion that government is always bad will have bad government. And it doesn't have to be that way. — Paul Krugman