Not at all.
Sir, there is a major problem with anyone holding to Pre
millennialism of the eschatology school of beliefs.
That day" is jesus' physical return.
Agreed~yet, at Jesus' physical coming that will be the resurrection of our bodies both the wicked and the righteous, of which, BEFORE THAT DAY the man of sin (which is a collective noun meaning ALL men who live under the power of sin, whether they personally confess this or not, God's word will be the ultimate judge and the final say as to whom are the men and women living under such a strong delusion) will comes FIRST which will be the beginning of the end of this world. Read 2nd Thessalonians again to see if this is not so. The man of sin, or the mystery of iniquity, has been in this world since the fall of angels and man
~YET, during the great tribulation (which is strictly SPIRITUAL IN NATURE) they shall increase more and more even to a point that if God had not shortened those days
, NO FLESH would have been saved~that is PRACTICAL SPEAKING with having TRUE KNOWLEDGE AND UNDERSTANDING OF THE TRUTH, for this world will be flooded with false prophets as God removes his restraints upon the powers of darkness and turns them loose upon a worlds of unbelievers~as it was in the days of both Lot and Noah, wherein only a handful of true believers were saved, it shall be no different as this world comes to its end. Making such a statement will cause many to mock, but so be it, I'm sure Noah was mocked when he was building the Ark over a long period of time about a hundred and twenty years. The great tribulation began somehwere after in 1800 to where we are now~most of the worlds fastest-growing cults started in mid-1800 to early 1900's~at which time also the flood gate of false versions of God's word has filled this world to go along in supporting these false cults and their doctrines.
And the falling away is going on right now, as many churches are nothing but social gatherings, & fornication & homosexuality being popular.
(Red highlights are mine for emphasis) Very true to what you said above.