Immigrants & voters should be required to pass a test similar to the Ash conformity test in which the correct answer is obvious but they witness 100% of a group of people give the wrong answer. If they copy the wrong answer of the group they should not be allowed to enter into the country or vote

This would be similar to the Ash conformity test

This would especially be beneficial for immigrants from countries with confucianism that tend to form cults in absense of such a filtering system