If the catholic church was founded by Christ. It could properly interpret his word.The difference is that the Catholic Church was founded by Christ and is different in nature than every Protestant church. Every Protestant church was founded by some mere man (or woman), based on their personal interpretation of Scripture, with no consideration towards the oral teachings (2 Thes 2:15) that have been taught.
The alternative is each individual claiming to be his/her own Pope with infallibility in teaching Christ's doctrine. Sounds like you ascribe to the latter.
Its people could interpret its word.
You claimed I took John 6 out of context. Yet you can not even show me how..