I have listened to many Christians discuss their beliefs and I think you are the first to say or imply that people might live free from sin. If you are saying that people are freed from sin in the afterlife, that is entirely different.
That's not what I said at all. I gave a very clear explanation which you ignored both from the prevailing Protestant view and from the Catholic view, neither of which said that people live free from sin. So you prove that you don't actually listen.
Moreover, your argument that anyone who is perfect in heaven must also be perfect on earth is more than myopic. Christians are translated, made perfect for heaven. What we do here is practice for eternal life, for we are called to abandon the ways of the flesh and pursue the holiness of God and to live holy lives as best we can. Nothing in that implies that we can continue in reprobate practices. Here's what St. James says:
"Submit yourselves then to God. Resist the devil and he will flee from you. Come near to God and he will come near to you. Wash your hands, you sinners, and purify your hearts, you double-minded. Grieve, mourn and wail! Change your laughter to mourning and your joy to gloom. Humble yourselves before the Lord and he will lift you up."
(4:7-10)
That's the calling of every Christian, to repent, to abandon wicked ways, and to purge ourselves of the filth of sin. In no way can that be mistaken for a belief in living as sinners