Hi Katy-follower,
If the great tribulation had already taken place as PlainWord has proclaimed, it would have been a terribly weak fulfillment of it being a time of great tribulation such as the world has not seen from the beginning, until now and never to be equaled again. Not to mention that if those days had been allowed to go on any longer no one would be left alive on the earth.
People who hold to this interpretation have a very weak understanding of God's coming wrath. Once the church has been removed and God's wrath begins, this world is going to be a chaotic mess. And by the time Jesus returns to the earth to end the age, this world will literally be in shambles. All of the seas and fresh water will have been turned into literal blood, the cities of the nations will have collapsed, the mountains and islands will disappear, people will have been tormented for five months with stings like scorpions by those demonic beings that are released out of the Abyss, a third of the earths population is killed by those four angels and their army of 200 million, Satan and his angels will be cast out of heaven and restricted to the earth, etc., etc. They have no idea of the horrors that are coming upon this earth. It's no wonder they believe that the church is going to be here, because their version of God's time of wrath is a tea party.
By the time the Lord returns to the earth, my questimation is that there will be less than 10% of the current population of the earth and that is being generous.