No, but I do know Catholics believe in Jesus. I have had many family members who were Catholic. It is not a religion without flaws, but a Christian religion.
I am a Protestant.
And tragically the Spirit is departing many Protestant churches these days as well so they are becoming nominal/lukewarm as well.
And you know this because the Holy Spirit told you? Christians can discern good from evil and evil spirits. Certain Christians have a gift of the word knowledge and prophecy and so can get spiritual insight into a particular person's life,
but you just can't make a blatant claim as to the Holy Spirit is departing from this or that church.
Unless you are a prophet of God whom the Lord just gave information to about a a church(s) going down, having their lampstand removed ( like John was given the Seven Letters), I think you better retract that claim.
We are not privy to who is a reprobate and who is not, which is why the Gospel goes out to all. Generally we can observe their fruit and know them that way.
Catholics or anyone who are not born again of the Spirit do not belong to Christ - that is what the apostle Paul wrote in Romans - regardless of their mental belief. The gift of faith can only come in via the Holy Spirit that we receive when we are born again.
There you go, claiming Catholics are not born again.
Some may not be, but how do you know? I can see their fruit, their faith and love for Christ and one another as I see Protestants have.
Have you ever conversed with a Nun or Priest casually and got the feeling this is a person led by Satan? Catholics have done much good in history, as missionaries, opening orphanages, hospitals, helping and loving people. These priests and nuns sacrifice their entire lives, become celibate, deny themselves a normal married life with a family for their Jesus! Can you do that? What do you give up and sacrifice for God???
People who do not have faith, have no interest in Christ. They are against Christ, refuse invitations to church, throw away tracts about the Gospel as fast as you hand it to them. If they are attending Church, likely they are interested, unless their motive is to please a family member or for appearances, social acceptance, political strategy ...
I had no interest in Christ as a non-believer in any way until He called me.
As far as I can discern, there are 2.7 billions Christians. This is the 1/3 remnant that God said would be saved, who will enter through the narrow gate.
Maybe you should not concern yourself with the Body of Christ and think about people who don't confess Christ, like Buddhists, Hindus, Muslims, atheists, etc?