Hey theArtist,
The Rapture as I understand it is a time when I believe that God will "catch up" into heaven those who have placed their faith in His Son (i.e. the Church) prior to the Tribulation period. Why? Partly, I believe, is that the whole point of the Tribulation period is not a test for Christians, but a punishment for humanity's sinfulness and rebellion against Him in the lead up to the second coming of Jesus. I believe that just as God provided a way for the salvation of the righteous from His punishment of humanity's wickedness, like Noah, Lot, and many other Biblical characters that He will provide a way for the righteous (saved) in that generation because God's judgement against them has been dealt with at the cross of Calvary. This way, I believe, is the Rapture.
I know that I certainly don't want to be left behind in the Tribulation period because the Bible tells us that unless He shortened the days of that period no one on Earth would survive. According to what I know, demons will be released on Earth to do as they wish and will kill up to 2/3 of the world's population through the various judgements. Because of everything that will happen and everything that people will go through, you think that they would fall on their knees and cry out to God for deliverance, wouldn't you? Yet, in spite of all the death and suffering they will continue to reject God and serve the demons who are causing all the destruction. That is true wickedness and shows just how depraved humanity will become.
Respectfully, I don't believe that you have even an inkling of just how bad it will in the Tribulation period. If you did, then you would certainly not ask God to place you back on Earth.
As an analogy of what you are saying, say that your friend commits murder, what you are saying about the Rapture and staying behind to be with humanity rather than going is that you would take the punishment with your friend that was directed towards your friend for their action.
God is being faithful and good by giving people the time to repent, but when His patience runs out and the Tribulation period starts, people will simply face the consequences of their continued sin and rebellion against God.
I'm not really into the end times, maintaining only a casual intrest, so some of the information that I've written may be incorrect as it is from my understanding of the events that will unfold. I haven't really thoroughly researched it though...