Ericsson's expedition didn't result in a permanent connection, or even durable documentation of the existence of another landmass to the west of Europe and East of Asia.
And the Mail empire theory has even less proof than the Viking one, and is thus dismissed by most experts on the matter. And even if it did happen, again it did not lead to the permanent opening of the new landmass to exploration and colonization.
Ok. So youre saying that opening it up to colonization was the great deed columbus set in motion?
His "great deed" was being the first one to lead an expedition that returned information on the previously undocumented landmass.
And here is where you try to accuse him of genocide, and all sorts of bad things that happened.
Genocide is a modern concept, that requires the DESIRE AND EXECUTION to eliminate a racial or ethnic group.
What happened during colonization was exploitation, something done by the natives to each other, Europeans to each other, Africans to each other, and on and on until you get one group exploiting another, usually due to vast differences in technology.