Didn't you just add pre-tribbers as "tares" to be gathered up at Matthew 13:30?
Apparently my bible left out this little detail. A printing mistake perhaps?
The "tares" would be defined in Matthew 13:41 & 49 as the "wicked"/sinners, those "who commit lawlessness", which would be the followers of the false prophet Paul, and his "twinkling of an eye theology", which is the theology of the serpent, in that "you surely shall not die" if you break God's commandments. "Pre-tribber" are simply followers of the serpent's message, which is the message of the "covenant with death" (Isaiah 28:15-18), whereas they think they will escape the coming "overwhelming scourge" (Isaiah 28:15). That "pact with Sheol shall not stand" (Isaiah 28:18).