This sounds like a lot of leftist fur balls to me.
You say that because you’re a troll.
Did you read the article? The majority of native Americans from the point of contact until the late 1600s died of diseases brought around from the Old World. This would be true for dogs as well.
It's got nothing to do with "white men" - the Europeans are just the western peninsula of Eurasia and have been germ-wise in contact with germs from as far away as China ever since the Mongol Empire