Welcome!
GU: When I told my wife that I read CoC she told me she felt like she needed to tell the elders
You might try getting your wife to think about this, "Why does she feel the need to tell the elders about your personal thoughts and private discussions? What does this mean about your relationship? What does this say about the religion?"
That being said, tread lightly and proceed cautiously.
GU: the general vibe I got from our discussion was my thoughts and disagreemets are fine, but influencing my wife and others would cross a line.
So THEY can influence your wife, but YOU cannot!
Few things shout, "Cult!" as loudly as behavior like this.
The only thing more ridiculous than the notion that anyone thinks they have the right to tell another adult WHO they can and cannot talk to and WHAT they can and cannot discuss is that anyone goes along with it.