My point in writing here is that Columbus is not to blame for all the American Indians' ills. He made some mistakes, but much of what he has been blamed for was not his fault and much of the bad things about him are not true. He did not die in chains in prison for example. He did get sent back to Spain under arrest at one time, but the Queen apparently apologized to him about that.
Imagine yourself in those times undertaking such a series of trips to an unknown and dangerous land. And remember that many of the natives in the Caribbean area were quite dangerous and cannibalism was practiced by some of them. Remember also that had Columbus not come someone else would have, and perhaps they would have been worse. A slightly more modern example will suffice. In 1898, as the era of steel ships began and when America defeated Spain and took the Philippines from her, the Germans had a fleet in place on station in Philippine waters, with the possible intent of getting the islands for Germany. One story relates that the German ships formed a battleline poised to attack the American fleet under Commodore Dewey, only to have a British squadron, also on station, steam between the two and train its many guns on the Germans. America proceeded to hold and govern the Philippines for 48 years. The Philippine Islands would not have been independent were the U.S. to have left. Would they have been better off German? Probably not.
History is one of my fields and it is not simple. All and all Columbus was a great man in a volatile, troubled, dangerous, and brutal era. Before one gets too upset about the things he may have done to the Indians, remember that he did not introduce slavery to the New World. Native Americans had been enslaving each other from their earliest days. Of course everyone is familiar with the pre-Colombian Aztec and Maya enslavement of thousands for labor and for religious sacrifice (in which the still beating heart was cut out of the living victim on an altar), one of the world's greatest holocausts. One might also pick up a good plains history such as Empire of the Summer Moon and read of the treatment of captives by the Comanche, particularly their treatment of women captives that they chose not to take as wives. On page 156 of S.C. Gwynne's aforementioned history you can read of the trials of Martha Sherman, 9 months pregnant at the time. She was not captured but left behind after a raid. The books says, "She lived four days, during which time she was coherent enough to tell the story to her neighbors. She gave birth to a stillborn infant." Rest assured there was white driven brutality as well, and do not try to argue with me about who started it. We may never know for sure, because both cultures at that time were brutal. The world was brutal.