Write a comment on immigration
These people would like to forbid immigration to the US which means the opposite of tollerating immigrants. One main reason is that immigrants might steal the work of US citizens. What is more is that immigrants might change the existing culture.
In my opinion tolerance is important to dominate the world because it increases the human resources of a country. It is impossible to dominate the world by using only talents of a single ethnic group.
In conclusion you can say that I agree with the author´s opinion because it is easier to dominate the world with talents from all over the world and because it is easier to dominate people who like you.