Why are Christians Offended When I Teach?

So today I was teaching a little bit at our twice per month Saturday evening Bible study. I guess someone was shocked when I mentioned that the Bible's Enoch and Elijah were actually dead and unable to return as the "Two Witnesses" in the Book of Revelation. Why is that controversial? 

Sure, most of Western Christianity teaches that that Enoch and Elijah will be coming back to preach and die in Revelation chapter 11. But does saying something other than what the majority believes make me controversial? 

Does it matter that there are even some extra-Biblical books that confirm that Enoch and Elijah are dead right now, and even accepted books of the Bible that contain information confirming that these two men died?

I've been in this place a few times, where someone has accused me of reading a Bible passage out of context, then finding an extra-Biblical source to back up a theory. However, for the record, I do not teach nor believe that extra-Biblical Books or even Apocryphal books are the …