Yeah, Im sure forced migration is a safe way to ensure, that the relations with your new neighbors will be harmonic and all racism and hatred will magically vanish.
Let me clarify.. I think it will assist in removing false prejudices that each group has with one another. I suppose it is just wishful thinking though, to hope they will get along with one another quickly. I guess to me, it just seems like FI is more like a cage or prison almost like the Indian Reservation system when first introduced in America. So Luffy destroying it is like setting them free and letting them co-exist with humans.