Some EAs are open borders advocates, but open borders is a ridiculously dangerous experiment for the West. They have not satisfactorily accounted for the crime and corruption that immigrants may bring. Additionally, under democracy, immigrants can vote and change the culture. Open border advocates hope that institutions will survive, but they have provided no good arguments that Western institutions will survive rapid demographic change. Institutions might seem fine and then rapidly collapse in a non-linear way. If Western Civilization collapses into ethnic turmoil or Soviet sclerosis, then humans everywhere will suffer.

A good straightforward illustration of how institutions are entangled with culture is the difficulty the West has had exporting democracy to the Middle East.