Yup. It's not offensive, it just isn't funny. At least not as a picture like that, maybe if it was a gif, or a short video like a vine and was just a single piece of corn it might work better.
Well, now, the corn in the top image is muslim terrorist corn, and after yelling Allahu Akbar, it then blows itself up, but being corn it just turns into popcorn. See? Hilarious.