Provide evidence to contradict an argument that allowing people to enter the country with unknown identity is a threat to national security.
There is only one problem with your reasoning.
No one in the U.S., in the last 47 years, has been killed by a terror attack by immigrants from the seven Muslim-majority countries Trump has targeted with immigration bans, according to the Cato Institute.
You say: "Allowing people to come into our country when we have no proof of who they actually are is total stupidity. "
Reaching a conclusion based on false premises is even more stupid.
Based on fact, there has been no threat from these countries.