Were any of those funny to you? Not a religious person myself, and I found none of them funny.
Going on the assumption that Jesus is God, and God causes cancer and any other number of hardships that people go through, then that would mean that Jesus be doing those things (if a religionist used logic instead of blind faithout without question).
On that basis, I found it funny, yes. They are drawings, not reality, and the drawings themselves were given a different context than what was intended by the original artist.
It's the equivalent of looking at this cartoon and saying "that isn't funny, I've met lots of jerks in real life, and there is nothing funny about an actual jerk."