They are facing the same decision that they made when they chose to leave Egypt or to stay in the World at that time. It is easy for us to say that that should have been a no brainer, but I believe that Hashem (the Name of the Lord) made it a difficult choice because they had to give up everything to go to their “Promised Land”, based on faith. That is exactly the choice that the Diaspora has to make today - give up home and go to the Promised Land, or stay. What a choice! Faith is belief that something is true when it is not perceptible to the five senses. I believe that all in the Diaspora are being given a choice. If you recall, according to the Sages, a third to a half of Jews stayed in Egypt. I do not believe that all Jews will make Aliyah, just as it was in the Exodus. (In my humble opinion.)
Most of the Jews who remained in either Egypt or Babylonia did not fare well.
DIaspora is temporary, meant to be temporary.
the Promised Land is permanent
worse perhaps, that Moses let a bunch of non-Jewish people join in the Exodus. Those “erev rav” (mixed multitudes) later proved to be a terrible thorn inside the People Israel (you see their descendants today in anti-Semitic front groups and in a number of socalled “reform” congregations.. where they are for all intents and purposes, pagans like some “liberal: Christians and some “Cafeteria” Catholics, alas!))
it is tragic.
The good Lord knew what He was doing when he commanded the Israelites to destroy the pagan Cannanites