People who get in under your second belief will destroy your first.Individual liberty is more important than societal cohesion. To change that I guess society would have to collapse from too much liberty.
Anyone can be an American. Someone who was naturalized yesterday is now just as American as somebody who can trace their lineage back to the Mayflower.
As for me. I think that the future is in space and I don't care what pollution has to be spilled and how many social programs have to be slashed I want human space colonization now. To change my mind you'd have to show me that all the meteors, gamma ray bursts and rouge black holes in the universe will miss Earth.