You are putting your own interpretation on what he wrote.
His meanings in his comments are (intentionally) vague and open to misinterpretation and it will take a lot of asking and goading to get him to clarify his meaning, and even then it will be, again, confusing, vague and given reluctantly, and accompanied with some abuse.
It is almost like he dismisses the teachings of his religion in his pursuance of his preaching.
On this occasion I would agree that his comment can only be interpreted one way, "the bible exposes the Roman Catholic church as a false church."
As John says, the Bible does not mention that church.
The Bible decries
all other religions, except Christianity, but the Roman Catholic church is a Christian church, so how can the Bible 'expose it as a false church'?
Answer: it cannot without explicitly mentioning it, and it does not!
The only other way is to prove that any specific church that you wish to decry is not a Christian church. The Bible does not attempt any such proof.
If B&B wishes to have a go at proving the Roman Catholic church is not a Christian church, I wish him the best of luck.
But judging by his vague and confusing attempts at espousing relatively simple concepts, and his blatant refusal to clarify those vague and confusing comments, I doubt he will be presenting any reliable proof any time soon.