I did not say Catholics believe otherwise.
What exactly are you saying? That the Catholic Church only comprises part of the Communion of Saints? Or do Catholics believe that the RCC comprises all of the Communion of Saints, both on Earth and in Heaven?
Taking a stab at this. There is a problem with our different understanding of “Church”.
For Catholics, the Church is the Kingdom of God established on earth by Jesus Christ. It’s not merely a group of like-minded people, it is a
reality.
There is the visible Church; the actual buildings, the hierarchy, all of us participating in our parishes and ministries, the Sacramental rites, Mass, etc.
Then there is the invisible Church, which comprises all who have a Christian baptism, which is a mystical union to Christ.
Heaven, is not comprised of only those who were baptized a Christian during their lives. Heaven is comprised of all who have been judged by God to be in Heaven.
If you want to say that makes everyone Catholic…I think that is because of your Mormon view that you have to actually become a baptized Mormon to be in your highest heaven. We hold no such belief, and there is no such teaching. Regardless of the back and forth here between Catholics and Mormons, there will no theological test to enter Heaven!
In Heaven, we will have an immediate knowledge of God, meaning, we will be
there. Why would there be a second guessing as to what is Truth when one is in the presence of Truth itself? Your error in understanding Who God Is, will melt away in His presence. Not a forced understanding, but an understanding based on Truth and God’s love.
In contrast, the Mormon idea that after death one remains oblivious to what is going on around them…somehow. As in, “Hello I’m dead, and the only thing going on here is Mormon”, … this somehow constitutes a continuation of a blind test?
The test of this life ends at our death, and either we are judged to be with God, or we aren’t. Those judged to be with God will know Him, as He is, not as the limited understanding we have now. You won’t have the need to hang on to your Mormon errors, because it will be obvious, in a most glorious and beautiful fashion, that there is no need for them.