Sovereign countries have the right, and I would argue the responsibility of securing their borders and controlling who comes and goes in their country. All sovereign countries have that right. We have not exercised that right.
I would that ye should come unto Christ, who is the Holy One of Israel, and partake of his salvation, and the power of his redemption. Yea, come unto him, and offer your whole souls as an offering unto him, and continue in fasting and praying, and endure to the end; and as the Lord liveth ye will be saved.