You probably shouldnt get your 'history' from books that come with crayons and how to draw guides. Oh...wait...you think prior to Columbus' arrival, the indigenous people were peaceful and did NOT go around slaughtering each other. You think it was the Euro settlers that were evil. Pray tell...why do mejicans speak Spanish today? Was than a natural evolution of the Mayan language?
Try reading again. The topic is the dangers of micro-organisms that are invasive. Let me explain what "invasive" means, since clearly you don't understand what that means.
"Invasive species" means that it is a species of life - micro-organism, plant, fish, animal - that is not natural to the area. For that reason, there is no evolved safeguards within nature to keep that species in check. The result frequently is the "invasive" species destroys indigenous species and can severely harm the ecosystem. "Ecosystem" means the living life environment.
Pause for a moment and then read this again, since those are difficult concepts for some people to understand.
In light of that, the topic is not whether "indigenous" peoples to the Americas were good or bad. So I will sidestep your simplistic comment on "indigenous" people of the Americas as if they were all one big tribe all acting the same and the same people. Rather, that diseases brought from the West that were not indigenous to the Americas resulted in literal genocide of peoples to the East, as significant as causing extinction of entire human races and massive deaths among others.
This is getting really complicated, huh? Sorry, I can't draw crayon pictures on the forum to help you understand this high school level complexity. So pause again and read back over it.
Thus, the topic was not your debating old cowboy-and-indian movies and your support of the cowboys. But you'd probably enjoy starting a thread on the topic elsewhere. The topic is the potential danger of bringing invasive micro-organism from elsewhere than earth, since time and again scientific organizations have stated they have discovered "alien" micro-organisms both on the moon, fossils of micro-organisms in meteorites, and the base elements for the formation of micro-organisms.
Granted, you might be a religious zealot who believes that a God make the entire universe singularly for humans and limited life in the universe to earth. You might want to start a topic of that on the Religion Board and possibly would feel more at home there.
Finally, along the long and confusing to you reasoning, the topic is whether there is a danger of bringing an "alien" micro-organism from "space" to earth that is destructive of humans and/or other life forms on earth for which there is no evolved safeguards. Again, you may wish to argue against evolution on the Religion board.
Oh, "alien" in the above paragraph does not mean illegal immigrants. I don't want to confuse you more than your message declares you are. "Alien" in the above paragraph means "not from earth." Since the topic is traveling away from earth and returning material not from earth to earth, "alien" is used in that context.
Pause again, read all of this over again - as this is getting quite long for you and involves more than a single summary statement.
In the context of the above (if you do not understand "context" as I use it here let me know and I will TRY to explain it to you), people of the West brought "invasive" species of micro-organisms that were deadly to many races of humans who had no evolved natural defenses against it, despite being human. However, because they were human, some peoples of some of those races survived. As "alien" micro-organisms are both invasive and alien, it is possible that human life and/or other life on earth would have no direct nor indirect evolved safeguards against such a mirco-organism if it is harmful. The result could be the extinction of the human race.
The response that other member gave to the possible sudden extinction of the human race and/or other species on earth was essentially that he believes we should risk extinction of the human race and any or all other life on earth included for the excitement of taking that risk.
^ That is the topic in relation to Indigenous Americans.