I’m not claiming to be infallible so yes, my opinions along with yours and those men can most definitely be wrong. The only infallible words we have are found in scriptures which is why I don’t cite any books except the 66 books inspired by God.Neither then does your opinion mean anything so no one should believe it.
So back to the verse at hand. You admitted the God mentioned in John 20:17 is not Jesus so clearly Jesus and the Father are not the same God. This confirms you are a polytheist.