The Lord Himself is coming in 1 Thes 4. He sends His angels in Matthew 24 so that cannot be when He comes for the Church.
That is a ridiculous conclusion. You can't conclude that two passages can't be related just because they don't contain all of the same details. There are no contradictions that can be found between 1 Thessalonians 4:14-17 and Matthew 24:29-31 (Mark 13:24-27).
Using this kind of flawed logic, we could conclude that Revelation 19:11-21 is also not the same event as Matthew 24:29-31 because it doesn't talk about any believers being gathered. So, do you think that Revelation 19:11-21 is not the same event as Matthew 24:29-31?
The Church is seen in heaven before the seals are opened.
Do you understand that the souls of believers go to heaven when we physically die? The souls of dead believers are portrayed in heaven in the book of Revelation. That is most obvious in passages like Revelation 6:9-11 and Revelation 20:4. So, why do you assume that any references to believers in heaven is talking about believers with immortal bodies?
The seals are before the tribulation. The Church is not mentioned again until Revelation 22. I think we can safely conclude that the Lord comes before the tribulation for His Church.
This is absolute nonsense that can't be taken seriously whatsoever.
Revelation 12:17 And the dragon was wroth with the woman, and went to make war with
the remnant of her seed, which keep the commandments of God, and have the testimony of Jesus Christ.
Don't try to tell me that those "which keep the commandments of God, and have the testimony of Jesus Christ" are not in the Church. They most certainly are. If they aren't, then no one is.
Revelation 13:7 And it was given unto him to make war with
the saints, and to overcome them: and power was given him over all kindreds, and tongues, and nations.
The saints are another word for Christians. The Church is made up of saints. Don't try to tell me these persecuted saints are not in the Church. They most certainly are.
Revelation 14:12 Here is the patience of
the saints: here are they that keep the commandments of God, and the faith of Jesus. 13 And I heard a voice from heaven saying unto me, Write,
Blessed are the dead which die in the Lord from henceforth: Yea, saith the Spirit, that they may rest from their labours; and their works do follow them.
Again, don't try to tell me that this isn't referring to people in the Church. It most certainly is. The Church is made up of "they that keep the commandments of God, and the faith of Jesus".