yes they discovered land just like the illegal Mexicans are discovering land, that affords them better opportunities. And to answer you question no I don't blame them, I would try to go somewhere that where more prosperous if I could. But just like the Indians tempers are starting to flair, it would only take a few incident to light that match and atrocities would be committed on both sides. Are the Mexicans the victims? They are the ones moving in. If the white man looses was he the peaceful victim?
The reason I being up the Mexicans is because we see this occurrence happen through history and it usually ends up in a violent confrontation that both parties excite. The Indians and white settlers are no exception to the same occurrences we see in modern history. If you think the Indians where sitting around baking bread and then all of the sudden for no reason whitey started killing them then you have a very warped sense of revisionist history.
Just read the story of Daniel Boone's son and how they butchered (and when I say butchered I mean butchered) him and it will give you some perspective as to why the pilgrims started to war with the Indians. I mean everyone wants to make whitey the baby killers and here we are with documented accounts of multiple occasions of Indians butchering men's entire families (even the little babies) as revenge and intimidation tactics.
I we did the same to some illegal Mexicans you could be sure that they would want revenge for such atrocities. And once a populist attitude of indiference ot another race or culture has set in it is verry hard to reverse course, whch eventual leads to the total destruction of one of the two cometing cultures.
Israel and the middle east is a good example of this unrepentant attitude. As ws Kosovo, this is history as usual so please don't try to rewrite it to fit you own world view. It is as it is, human nature is as it is and you just have to accept it, until you and others do you are doing everyone a disservice, as solutions need to be derived from real problems and not once idea of what the problem should have been. You are denying the Indians their history and their plight for survival by making them wimps that where just the victims.