Three reasons why the annual Columbus-hating spree is bogus.
1. Evaluating the past by today's ethical standards is ignorant and erroneous.
In only a few generations, in fact within a single human lifetime, we have revised or inverted many of the basic concepts of the value of human life and the proper treatment of ethnic, sexual, and developmental minorities. Before the 20th century, genocide was not a crime. From the very origins of humanity it was a normal tool of cultural development and expansion. A more technically advanced culture used its advantages to eliminate its rivals and occupy their territory. Less developed or minority cultures were not valued, honored or preserved; they were considered inferior and were eliminated as a burden and an obstacle to the upward climb of civilization. It is only because the power elite no longer has complete control over the means of communication that opposition to this worldview is now being expressed.
2. The “Noble Savage” stereotype, like all stereotypes, is false.
The idea that the Western Hemisphere was filled with harmless, peaceful peoples possessed of a higher spiritual knowledge and in balance with nature is ignorant and absurd. Native Americans were as stupid, greedy and brutal as anyone else. They were just as avid in robbing, raping, torturing, mutilating and murdering their rivals as anyone else. They were cruel slave owners and casual infanticides. They were often in a continuous state of war with their neighbors, and the more highly developed their culture, the more prevalent was the presence of public ritual torture and human sacrifice. When advanced technology was obtained from European sources, they did not hesitate to use it on each other as eagerly as the Europeans used it on them.
3. Columbus' voyage was a unique and significant achievement that changed the world.
Barring minor northern exploratory journeys, before Columbus no-one thought or dared to deliberately undertake the western sea voyage. By doing so, Columbus immediately changed the direction and means of expansion of the most advanced civilization. His personal character and behavior, which were not markedly different from those of any other person in his position at the time, have nothing to do with the historical and cultural significance of the introduction of the knowledge of an entire hemisphere previously unknown to and undeveloped by the most advanced culture on the planet. You can have any opinion you want to about that. See point 1.