So, then, when Catholics tell us they are offering the sacrifice of the mass, in which Jesus as the lamb in heaven is perpetually dying and they are participating in that eternal sacrifice that is forever happening in heaven, then they are telling us that God, in some unfathomable way, beyond human understanding, is forever dying in heaven.
God who is Life itself, is forever dying in heaven?
Did you ever think that through?
Stop right there. That is not what the Catholic Church teaches concerning the Mass. Jesus died on Calvary. He never dies again, not in heaven, not in the Mass.
If you are going to object to "Catholic" teaching, make sure that what you are objecting to actually IS Catholic teaching.