Question for my readers about evil examples

Whenever I discuss the problem of Evil, or relativism I use examples of evil, and workers of evil like torturing babies for fun, and Hitler, I use such extremes because in a day and age that mass murders like Che Guevara are worshiped, and when people talk about killing unborn babies in a way that allows them to harvest organs, while eating lunch,  it is becoming more and more difficult to find examples of evil that both me, and the audience will recognize as evil.

On a few occasions I have had people accuse me of calling them like Hitler, or saying that they torture babies for fun, which is not my intent, and I suspect is just a way to get me off track when they have no other response. Nevertheless, I would like any suggestions you have on phrasing when you need to give an example on evil that might help me avoid this discussion stopper.