Arrivals...There goes the neighborhood

This topic seems extremely true in the case of the Native Americans having to deal with Europeans.  The Europeans invaded a place that seemed rather peaceful and almost completely destroyed it by spreading diseases and killing people.  I think this topic can also be taken as the people already in the neighborhood as the people being bad/racist.  In Salem, the place where The Crucible takes place, the people would say the neighborhood is ruined if any one with different beliefs came in even if they were good people.  So new arrivals can ruin a neighborhood but the neighborhood should also be accepting and not assume every new person is bad and dislike them for it.