One will be in the field, one taken, one left... why pretrib?

But as the days of Noah were, so also will the coming of the Son of Man be. For as in the days before the flood, they were eating and drinking, marrying and giving in marriage, until the day that Noah entered the ark, and did not know until the flood came and took them all away, so also will the coming of the Son of Man be. Then two men will be in the field: one will be taken and the other left.  Two women will be grinding at the mill: one will be taken and the other left. Watch therefore, for you do not know what hour your Lord is coming. But know this, that if the master of the house had known what hour the thief would come, he would have watched and not allowed his house to be broken into. Therefore you also be ready, for the Son of Man is coming at an hour you do not expect.  Matthew 24:37-44

Whoever seeks to save his life will lose it, and whoever loses his life will preserve it. I tell you, in that night there will be two men in one bed: the one will be taken and the other will be left. Two women will be grinding together: the one will be taken and the other left. Two men will be in the field: the one will be taken and the other left. Luke 17:33-36

In my last 3 posts, we've been discussing the Days of Noah and Lot and comparing them to our present time. Today I want to briefly talk about another reason I truly believe in the Pre-tribulation rapture. I have many Scriptures to back up my beliefs, but if you're interested, here's a post I wrote a while back on it.

In the above Scriptures, we see a vision of the rapture as described by Jesus.
Two men in the field, one taken, one left
Two women grinding at the mill, one taken, one left
Two men in bed, one taken, one left

Let's say for a moment that the rapture doesn't occur before the tribulation but afterward and right before the 2nd coming of Jesus, as many who adhere to the Post-tribulation theory believe. This is what the world will look like by then.

Revelation 6
Major World Wars
Worldwide famine
1/4 of the people killed
All Christians tortured and murdered
Massive earthquakes
Sun goes dark
Meteors crash to earth

Revelation 8
1/3 of all green grass and trees burned
A giant asteroid strikes the sea and 1/3 of the sea turns to blood and 1/3 of ships destroyed
Another asteroid turns 1/3 of fresh water to bitter and poison
1/3 of Sun, Moon and stars lose their light.

Revelation 9
All non-believers tortured by demon locusts for 5 months, begging for death
1/3 of all humans killed by giant army marching from the east

Revelation 16
Loathsome and painful sores cover all who took the Mark of the Beast
All the oceans on earth turn to blood
All the fresh water turns to blood
Men are scorched by unbearable heat from the sun
Extreme and utter darkness consumes the planet
Largest earth quake strikes the planet and the cities of all the nations crumble
All mountains are leveled and every island sinks
Giant 75 pound hailstones fall on all mankind

So basically by the end of the Tribulation,  nearly three-quarters of the population will be dead, there won't be any fresh water and no viable sea water, hence no fish to eat. 1/3 of all vegetation will be gone and probably most of the rest when the asteroids hit and then again when sun goes dark for so long and all the fresh water is gone. The remaining people will be in agonizing pain due to plagues, starvation, earthquakes, meteors and war. Oh and a massive earthquake will crumble every city and level every mountain and sink every island. Did I mention the 75 pound hailstones?  And don't forget that the Antichrist will be in charge, the most vicious dictator who ever lived.

So, do you honestly expect me to believe that two men will be out in the field farming when there's no water or sun? Or even sleeping in bed comfortably. Will two women will be going about their day grinding flour? or just going to work? Huh?  There won't be any fields or flour or even comfy beds at the end of the tribulation, or in the middle for that matter. 

My point? The rapture, as described by Jesus Himself, can't possibly be at the end of the tribulation. The description Jesus gives is one of Life as Normal.  Now if He had said.

Two men will be hiding in a cave, starving and weeping over the loss of their homes and families and
Two women will be crawling through sewage-laden ruins, looking for a scrap of food to eat..

Then yes, I will believe the rapture occurs at the end of the tribulation, but it doesn't say that, does it? This just gives me more proof that the rapture is pre-tribulation!

Thoughts?