D'ohhhh!
I personally like challenging the self-righteous rubes that whine about genocides that happened hundreds of years ago. Make them aware of the genocide that is happening right now in West Papua... Of course, to fix it they would have to actually get off their arses and do something, rather then spew outrageous, self-righteous claims over the internet.
What do you know? Natives are still being shot in the head by Muslims and not a PC activist in sight. Wait! I hear crickets...