I don't have a conflict with any part of the Bible, it is you have decided that people cannot fall away in spite of what Jesus and Paul taught.
I have not put any words in your mouth.
I don't personally know Mel White, however I have met Troy Perry. Both of these men are false prophets (when you consider the full meaning of prophet) as is Gene Robinson who is another example of a man who has "fallen away". I could also list Benny Hinn and the whole word of faith movement, the Kansas City Prophets, and many in the charismaniac movement. Our world is full of examples of what Jesus and Paul preached against and warned us to be aware of.
You are still avoiding apostasy.