I have never received a meaningful explanation from amillennialists, pretribulationists, and posttribulationists who think that in Jesus’ Noahic analogy the wicked are taken to judgment and the righteous are left.
This makes absolutely no sense given that Jesus illustrates the separation event in Matt 24:31.
“And he will send his angels with a loud trumpet blast, and they will gather his elect from the four winds, from one end of heaven to the other.” (Matt 24:31 NET)
Last time I checked, verse 31 says the “elect” are taken, not the wicked. It is the elect who are taken and the wicked who are left. That is the very point of Jesus’ illustrations in vv. 37–41.
I have written an exegetical article (see below) on this giving six reasons, contextual and lexical, why this is the only reasonable interpretation to the question of who is taken and who is left.