Rev 19:1 clearly says the great crowd are in heaven!!
Perhaps this are the real GC of the other Other Sheep of non-Israelite Christians, led by Cornelius, to be known to have the Holy Spirit, and resurrected in 1918. ha ha.
The impossible wt struggle is also shown, with their near pathological preoccupation with numbers (just like he hapless David and his census)
Rev. says "--the GC who no man was able to number--". so: why try?