>Most of the indian tribes did not believe the land belonged to anyone, not even them. (That view has nothing to do with what happened to them) All of this 'our land' back then was really 'the land.' The problem was that they were being forced to move (and where they were being forced to move to and what was or was not there), not that anyone came here uninvited. They didn't see it as their property. They considered themselves stewards of the land. They considered it a moral right to walk anywhere on the earth they wished and didn't understand the european concept of land ownership and private property. They were mostly concerned with the right to visit their historical, spiritual, and grave sites of their ancestors.
Yes, that was certainly part of the problem - the drastically different concepts between the two cultures.
Difference in opinions hath cost many millions of lives: for instance, whether flesh be bread, or bread be flesh; whether whistling be a vice or a virtue; whether it be better to kiss a post, or throw it into the fire... (from Gulliver's Travels)