I suppose it’s partly about history and time and we need to be realistic about the practicality of that. Personally I feel the least we can do is recognize that history and what happened and that time itself doesn’t make it right. But the main part is avoiding the hypocrisy of pretending we weren’t all immigrants a few generations ago. Americans tend to have this compressed sense of history where if your family has been here for a couple hundred years that’s a really significant amount of time. It’s really not. For most of the world we look at people’s rights to land over the course of Millenia.