Well, I've working with gas turbines my whole career, so you won't convince me of 100% reliability. You see, the chances of an engine failure are around .01% which appears very low, but when multiplied by the many thousands of hours of operations, results in the certainty of several engine failures over the life of the program. And a lost engine on the F-35 means a loss of aircraft, and possibly pilot as well. It doesn't glide, and it can't land on snow or ice.

BTW your comment was rude.