I mean, this question is not just about normal criminals.
Think like very bad crimes. Like serial killers, rapists, child rapists, terrorists, corrupt officials, terrible leaders, cruel dictators, generals that ignore laws of war, or like people has bad as Hitler. Which of these people do you think deserve a respectful burial, if any.
Is there a level of evilness that you think should not be allowed to have a proper buriel or have their corpses mutilated. Or should everyone deserve a respectful burial regardless of crimes.
I personally don’t even know how to answer this question myself. Like the funeral isn’t even for the dead. Its for the living. So to me, the question seems like, should the relatives of a bad person be allowed to see the corpse treated respectfully. I personally don’t have an answer to this question.
The thing is, other shitty people care. They see how we treat dead shitty people and, because humans are irrational, see it as a reward for their behaviour in life. That’s also why I’m against the notion of not speaking ill of the dead - no, people need to realise that they won’t be respected when they’re dead if they were shitty.
I know it doesn’t matter, rationally. But humans are weird and care about what people will think when they’re gone.