From the 7 countries on the list, the total level of immigration to the US is just 2% of all immigrants, and immigrants make up 13% of the total population. So that's 0.26% of the population from those places. That's about 837,000 people in total. In total - ever to have immigrated to the US. It's less than about 25,000 people a year. 0.1% of that is 25. Trump has, at most, managed to stop 25 people a year from entering the US, and that assumes that such people, particularly those intent on unleashing terror attacks, follow the laws.
Well done.
/golf clap
Do you feel safe yet?