Are you claiming that the Catholic Church no longer teaches Truth, at all? If you are, then I completely disagree.
God is not concerned with His Church governing the secular world, any more than Jesus was. Jesus came to save our souls, not to rule this world in a political sense.
Matthew 22:[17] Tell us therefore what dost thou think, is it lawful to give tribute to Caesar, or not? [18] But Jesus knowing their wickedness, said:
Why do you tempt me, ye hypocrites? [19] Shew me the coin of the tribute. And they offered him a penny. [20] And Jesus saith to them: Whose image and inscription is this? [21] They say to him: Caesar’s. Then he saith to them:
Render therefore to Caesar the things that are Caesar’s; and to God, the things that are God’s. The Church should lead the world as an example in matters of faith and morals, but politics are not Her concern. If all people would follow her guidance in faith & morals, then it wouldn’t matter who lead, politically. Unfortunately, not everyone listens to the Pope when he speaks about those things, so as a result, we have the condition of the world we live in. You still can’t force people to comply with whatever the Catholic Church teaches. Look at the all of the non-Catholic Christians, as well as the sedevacantists, that completely ignore everything the Pope says because they don’t believe he has any real authority over them. How can you expect the Church to ever rule this world in any way, without removing the free will that God gave to every human being?
But, what you’re suggesting would be to force everyone to comply, no matter what they actually believed. Jesus also said, “My Kingdom is not of this world.”, so your assumption that the Church should rule the secular world is against everything that Jesus taught. He wants His Church to rule over the
hearts of men through love, not over their secular lives with an iron fist.
Your plan would make the Church rule over the flesh, alone. It would turn people’s hearts to stone against the Church, and everything that She stands for, by making Her no better than a communist regime. In the end, that would only result in a greater loss of souls.