It’s not *indisputable*.
Just because the Catholic church doesn’t believe it, doesn’t mean Scripture doesn’t teach it.
There are lots of things the Catholic church teaches that are not found in Scripture and lots of things found in Scripture that the Catholic church teaches against, so their position on this is no surprise.
metmom, you do know that NRx is an Orthodox Christian, don’t you? And that the article he posted is written by a Priest Emeritas of the Greek Orthodox Archdiocese of America? Not everyone who disagrees with your beliefs is a Catholic.
Summary: Orthodox Believers of History Have Believed in a Pretribulational View
As stated earlier in this link, the timing of the rapture debate should not be classed as an "A" level truth. The fact of Christ's coming is a larger issue. Then next in the scale would be if Christ will rule on the earth as King over all the earth. Those two issues are higher on the scale than the exact time of his rapture of the church age saints. To divide a fellowship or to break fellowship with a body over this one doctrine shows a sign of immaturity.
However, Christians must recognize that those who paint pre-tribulationists as fanatics, fringe movement Christians, or as heretics who have embraced some strange and novel idea never heard of until the 1800's have done a disfavor to the entire body of Christ. Whatever position one holds to in this area, everyone should at the least admit good, sound, and orthodox believers have taught this view before the 1800's time period. And many today continue to see this as a valid position to hold from the Scriptures when properly interpreted in a plain, consistent, and normal manner with the words given their ordinary usage in historical context.