It won't do any good when people willfully wallow in their ignorance. It may just be dust-shaking-off time, eh?
When they simply WILL NOT listen, sometimes there’s no choice.
However, there is the lurkers who may be learning the truth for the first time and to let the false claim that Luther removed books from the Bible stand does a disservice to them.
You are correct BB. The ignorance is willful. I am reminded of Matthew 15:8-9. This people draweth nigh unto me with their mouth, and honoureth me with their lips; but their heart is far from me. But in vain they do worship me, teaching for doctrines the commandments of men.
Due to judicial hardening, I think many, if not all, grow further away from Jesus, not closer.
Here is another angle I see. Since Satan tries to counterfeit everything that God creates, the fact that there are false religions out there, tells me they are counterfeits, but a counterfeit, means the REAL TRUTH is there too.
If anyone has an occasional honest doubt that they have the truth, just look at all the counterfeit religions out there.