There is no worldly answer to your question. Of course it makes no sense to welcome the Satanic Cult of Death into one's country.
In short, it is End-of-Years Hashgocho Protis -- divine providence (intervention).
The longer answer is Ishmael (Islam) and Esau (the West) join together during the end-of-Years and that's exactly what's happening.
When 9/11 happened one of my first thoughts was “this is from the Bible”. It was stunning to me. Too bad more people don’t see it.