No, most of what is said is scriptural but since Catholics don’t always believe in that, it’s almost impossible to reach them.
You are referring to your own personal interpretation of Scripture and, no, I don't believe in your own personal interpretation of Scripture.
I can believe the Church founded by Christ or join a wife-swapping, geriatric-swindling cult in upstate New York. I'll stick with option A: the Catholic Church.
No, I don’t believe it is so much Scriptural as it is Prideful.
I should think a Christian would be more concerned with reaching the un-churched than one would be with judging the faith of another.