What is the difference between an Afghan seeking refuge and Ukrainian seeking refuge? The second will not rape your children, and try to convert you to Islam Sharia Law, or if you do not accept, then kill you. The difference is clear. אין אדם גר עם נחש בכפיפה אחת  A Gemara brings the idea that a person can not dwell with someone else that is trying to hurt them. 

There is a reason not to bring into your home someone that will try to destroy it.