...Mathhew 24 deals with the end-times, after the rapture...
Do you believe Matthew 24:36-44 is after the rapture?
...God's children will be blissfully unaware of the horrible things happenning on earth...
In your view, how will we Christians who will be in the tribulation who have washed our "robes, and made them white in the blood of the Lamb" (Revelation 7:14) and have "the faith of Jesus" (Revelation 14:12) and are "in the Lord" (Revelation 14:13) not be God's children?
...We are promised salvation from wrath...
Note that during the tribulation nobody in heaven says God's wrath "is come" until near the end of the tribulation, after the 7th trumpet (Revelation 11:15, 18), in the 7 vials of God's wrath (Revelation 15:1; Revelation 16), and none of the 7 vials are poured out on those of us who have obtained salvation; we are even blessed at the 6th vial (Revelation 16:15), that we might endure to the 1,335th day (Daniel 12:12).
In the pre-trib view, will those who "obtain salvation" in the tribulation be "appointed to wrath?" Aren't being "appointed to wrath" and "obtaining salvation" mutually exclusive?
"God hath not appointed us to wrath, but to obtain salvation by our Lord Jesus Christ" (1 Thessalonians 5:9).
...We are promised mansions in heaven...
Note that no verse says the rapture takes anyone any higher than the clouds.
Note that Jesus simply said "I will come again, and receive you unto myself" (John 14:3). He didn't say he would come back before the tribulation or that he would take us into heaven.
Jesus said "I will come again, and receive you unto myself; that where I am, there ye may be also" (John 14:3). Note that he says we will be where he is after he comes again. He doesn't say he will turn around and go back into heaven. And indeed we will be where he is after he comes again: on the earth during the millennium (Revelation 20:4-6, 5:10, 2:26-29).
I believe Jesus said "In my Father's house are many mansions... I go to prepare a place for you," to show why he was going, not why he was coming back, and to show that he still has great and eternal plans for us in New Jerusalem, where the Father will dwell with us after the millennium: "I John saw the holy city, new Jerusalem, coming down from God out of heaven, prepared as a bride adorned for her husband. And I heard a great voice out of heaven saying, Behold, the tabernacle of God is with men, and he will dwell with them, and they shall be his people, and God himself shall be with them, and be their God" (Revelation 21:2-3).
...We are promised a rapture...
Note that no scripture promises us a rapture before the tribulation. Jesus says he will come to gather us together "immediately after the tribulation" (Matthew 24:29-31), and Paul says Jesus' coming to gather us together must "destroy" the Antichrist (2 Thessalonians 2:1-8). We Christians must go through the coming tribulation (Revelation 13:7-10, 14:12-13).
"When the Son of man cometh, shall he find faith on the earth?" (Luke 18:8)
...post-tribbers will set themselves up to be discouraged...
I believe the pre-trib doctrine may be setting up many in the church for great disappointment when they find themselves in the tribulation.
I believe we all -- whether we are pre-trib or post-trib -- must begin in these days to face and get free of any fear of the coming tribulation and any fear of death:
"Fear none of those things which thou shalt suffer: behold, the devil shall cast some of you into prison, that ye may be tried; and ye shall have tribulation ten days: be thou faithful unto death, and I will give thee a crown of life" (Revelation 2:10).
"He that overcometh shall inherit all things; and I will be his God, and he shall be my son. But the fearful... shall have their part in the lake which burneth with fire and brimstone" (Revelation 21:7-8).
"Deliver them who through fear of death were all their lifetime subject to bondage" (Hebrews 2:15).
"Be not afraid of them that kill the body, and after that have no more that they can do" (Luke 12:4).
"For to me to live is Christ, and to die is gain. But if I live in the flesh, this is the fruit of my labour: yet what I shall choose I wot not. For I am in a strait betwixt two, having a desire to depart, and to be with Christ; which is far better" (Philippians 1:21-23).
...thinking they too, will have to pass thru God's judgement...
Does Revelation say the seals and trumpets of the tribulation are "judgments?" I believe God's judgment doesn't come until the 7 vials of wrath at the end of the tribulation (Revelation 15:4, Revelation 16:7), and none of them are directed at us Christians.
The tribulation includes war, famine, plague, persecution, natural disaster, death -- things which we Christians have always suffered, and not because God was bringing judgment against us.
...A pre-trib rapture would be the easier thing to face...
Note that the gospel has never been about the easier thing to face in this life, but victory and eternal life despite facing suffering and death:
"Who shall separate us from the love of Christ? shall tribulation, or distress, or persecution, or famine, or nakedness, or peril, or sword? As it is written, For thy sake we are killed all the day long; we are accounted as sheep for the slaughter. Nay, in all these things we are more than conquerors through him that loved us" (Romans 8:35-37).
"Beloved, think it not strange concerning the fiery trial which is to try you, as though some strange thing happened unto you: But rejoice, inasmuch as ye are partakers of Christ's sufferings; that, when his glory shall be revealed, ye may be glad also with exceeding joy" (1 Peter 4:12-13).
"That the trial of your faith, being much more precious than of gold that perisheth, though it be tried with fire, might be found unto praise and honour and glory at the appearing of Jesus Christ" (1 Peter 1:7).
"Unto you it is given in the behalf of Christ, not only to believe on him, but also to suffer for his sake" (Philippians 1:29).
"We must through much tribulation enter into the kingdom of God" (Acts 14:22).
"Yea, and all that will live godly in Christ Jesus shall suffer persecution" (2 Timothy 3:12).
"I reckon that the sufferings of this present time are not worthy to be compared with the glory which shall be revealed in us" (Romans 8:18).
"For our light affliction, which is but for a moment, worketh for us a far more exceeding and eternal weight of glory" (2 Corinthians 4:17).
"Here is the patience of the saints: here are they that keep the commandments of God, and the faith of Jesus. 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" (Revelation 14:12-13).
"If any man will come after me, let him deny himself, and take up his cross daily, and follow me. For whosoever will save his life shall lose it: but whosoever will lose his life for my sake, the same shall save it" (Luke 9:23-24).