It hasn't happened because there has not been a worldwide event where angels gathered people to be caught away in the air yet. And the people who will be caught away in the air will be born again Christians, they will come from every denomination from all different nations. As to what denominations will have the higher percentages of born again people I can't say. But the denominations that are more scripture based without false doctrine I think will have higher percentages. After the catching away people can still be saved but they will have to endure the hour of temptation(Revelation 3 10), which I believe will be the temptation of having to accept or deny the mark of the beast. If they deny it they will probably be beheaded and die but will gain eternal life. If they accept the mark they cannot be saved. The mark will most likely be the RFID chip which will be placed under the skin. The mark of the beast is a mark which God says you will not be able to buy or sell without it. This RFID chip will have all your personal information on it and will probably transition into a form of payment like Apple pay where you swipe your hand. And I do not think it's a coincidence that the RFID chip is being created by Lucent technologies whose head courters are located at 666 5th Ave in NYC. And the people who own Lucent technologies are the Kushners whose son Jared is married to Ivanka Trump. Do I sound crazy, yes. Are my facts correct? Yes. Do I think Donald Trump could be the Antichrist? Yes. Do I believe the earth is flat? Yes. Do I care what other people think? No. I say what I mean and I mean what I say. I'm not a troll I'm only trying to lead souls to Christ.