You make an excellent point regarding diversity. Being a brown person in America is not easy (During the roughly 25 + flights I have done this year, I have been

You make an excellent point regarding diversity. Being a brown person in America is not easy (During the roughly 25 + flights I have done this year, I have been asked to do a "random" TSA extended check every single time). However, I can easily put this experience in context to other more homogenous countries I have lived in in other continents. The magnitude of the problem makes it excessively hard to make a realistic solution that works well for tiny populations scale well to the diversity and size that America operates in.