What we have here is a difference of intepretation.
Your interpretation is modernist, created after the enlightenment.
Your view is not part of historical Christianity.-This here is not truth, but your belief, which is unproven. Your basing that on your church being right, which I dont believe it is. If your church teaches that way, then they dont understand context, and have awful exegesis. You always mention historical Christianity, but never prove it to be that way.
Do you even know what Purgatory is? It appears you don't.
From the Cathechism:
III. THE FINAL PURIFICATION, OR PURGATORY
1030 All who die in God's grace and friendship, but still imperfectly purified, are indeed assured of their eternal salvation; but after death they undergo purification, so as to achieve the holiness necessary to enter the joy of heaven.
1031 The Church gives the name Purgatory to this final purification of the elect, which is entirely different from the punishment of the damned.