if the tares are all removed, and the wheat stays here in this world to stay working in the field, what exactly are they working on if the tares are all gone?

some people are teaching that their is absolutely no rapture, their is, however it is AFTER the sun has darkened, and AT THAT TIME, then he sends the Angels to gather the elect,

the verse of the tares and wheat, the tares get burned and thrown into the fire, then it clearlys says BUT the WHEAT is stored in the barn

some teachers are claiming the wheat is running around down here harvesting, but in the same teaching, they claim the tares are all removed first

well that makes no sense? what are they harvesting if them tares are all gone first?