The full version is a lot more complicated. One thing edited out by clip above is Columbus praising modern-day condemnation of slavery.
You say that like it makes any of it better. In fact, it makes it worse. Christopher Columbus enslaved native Americans. To portray it as if he would have been glad that we moved on from slavery, would be like having Hitler say that it's so good that we've moved on from hating Jews. It is a disgusting and dishonest portrayal, and there's absolutely nothing positive about it.
I watched the video.
One minute in, and the side against Christopher Columbus spread things like disease and slavery; while the side for was that he was courageous and inspired people to think differently. Such a fascinating comparison, because it just doesn't work. One side is talking about real tangible problems, and the other side is largely talking about intangible benefits.
Prager U is incredibly consistent at:
1.) Giving half truths
2.) Giving lies.
3.) Leading you from A to B without justification. They will claim that A implies B, even if it clearly doesn't.
And perhaps more importantly, they package these lies in such a way as if they are obvious truths. Like someone would have to be an idiot not to come to the same conclusion.