I cannot believe you are this obtuse. Is it deliberate? Allow me to break it down for you.
1. Karky objected because I revealed the ending of a two-year-old book that is among the most widely read books of modern times.
2. I pointed out that fact, hence why I thought it was not a spoiler
3. Karky said it was wrong to reveal the ending of any written narrative, no matter how old, if it might be made into a movie.
4. To mock Karky, I said that I chided people for discussing a Shakespeare play because it might be made into a movie. In fact, I did nothing of the kind.
5. Because you are simple, you are baffled by the mockery, and therefore whinge about a non-existent contradiction.