Christopher Columbus does not deserved any credit for discovering the Americas but only creating an opportunity for Spain (which leds to the deaths of many Native Americans). However, in his contributions, he should be giving some praise and glory but he might have deserve the lack of respect, persecutions, and dishonor he received from Spain. It may be a form of karma expressed through the hardships that the Natives endure as well as the crew members on the boat, seemly that he did not treat neither with the greatest respect.
Honorable or not