1 Thessalonians 4:13-18 does not give a timing of His second advent, ergo, all eschatological systems use it for proof theirs is the correct one.
1 Corinthians 15:50ff is the same way.
Then Revelation 4:1 says John was called up, not anyone else, not ary other believer, just John alone. So to use that as proof the church is raptured at that time is speculation at best.
Those who hold to pre-trib use the ark as proof God will rapture believers pre-trib. Hmmmmph, that ark went through the flood and were not raptured out and then brought back down after the waters receded.
However, in Matthew 24 we read...29 “But immediately after the tribulation of those days THE SUN WILL BE DARKENED, AND THE MOON WILL NOT GIVE ITS LIGHT, AND THE STARS WILL FALL from the sky, and the powers of the heavens will be shaken. 30 And then the sign of the Son of Man will appear in the sky, and then all the tribes of the earth will mourn, and they will see the SON OF MAN COMING ON THE CLOUDS OF THE SKY with power and great glory. 31 And He will send forth His angels with A GREAT TRUMPET and THEY WILL GATHER TOGETHER His elect from the four winds, from one end of the sky to the other. So, it seems to me that believers will go through the GT, but will be protected just as Noah and seven others were, and the Jews in Egypt were during those ten plagues.