I believe most Jews who immigrate to Israel aren’t from the U.S. The U.S to this day houses like 40% of Jews in the world. People emigrating out of the U.S overall is not common
More Israelis leave Israel for the US than the other way around. Yet Americans do make up a good number of those coming to israel.
In my personal life I have encountered quite a few people who want to leave for Israel. And Jewish Reddit is full of posts talking about how it’s time to leave because Holocaust 2.0 is on the horizon.