The white man didn't want slavery, it was forced upon them by the Africans. We were just there to get spices but the Africans made us take slaves. Not doing so would have been rude.
We also freed the underused continent from the Injun. They had it for thousands of years and did nothing. We had it for less than 200 as a nation and put a man on the moon.
If they would have fought harder and been more civilized with better weapons they would have won. The laziness of the natives cost them a continent