Earlier quoted context omitted.
The ban applies to people living in China or Russia, not on chinese or russians. Any american or european living in either country would similarly be affected by the ban. Untwist your knickers please.
It very quickly escalates to discrimination against Chinese people in the US, as evidenced by the highly upvoted comment I originally responded to. I'm sorry if I get my knickers twisted about people proposing an entire race of people pose a national security threat, but this sort of xenophobia has rarely gone well in history.
You keep calling it xenophobia even after you've been proven wrong when you claimed this is targetted at green-card holders. You are absolutely disengenuous and have no intention at good-faith discussion.