I actually had a very different experience. In my elementary school, in a suburb of Kansas City, I was never taught that Christopher Columbus was anything other than a hero. We learned that many English and Spanish colonists treated the Native Americans badly, but that was it. We learned that slavery was awful, but we weren't taught the specifics. Until middle school, I thought that Christopher Columbus was entirely well-intentioned, and never meant to cause so much violence.
After I moved to South Florida, I was given a very different, much more explicit lesson on slavery and Columbus. But the modern difficulties of Black people were usually just mentioned in a hushed tone, or during some kind of open discussion.