If the rapture is Post-Trib, then who will populate the Millennium?
Pre-tribulationists think the above question is a huge difficulty for those holding the post-tribulational position, for the following reasons : If all believers were raptured immediately before the start of the millennium (in a post-trib rapture) they would be glorified immortals, and thus non-child-bearing, …and if all the rest of the world were non-believers who would be condemned in a judgment by Christ at the Second Coming, whereby none of them would be allowed to enter the millennial kingdom, then no one would be left to populate the millennium.