I hope you're joking, frankly I don't even know who we're talking about, but recognizing someone is a human being is a basic human right.
If you want to go against all moral conventions by all means do that, but don't expect anyone to sustain you.
This is not showing sympathy for Hitler, this would be saying Hitler was already sick and dying and still feeling happy about him dying anyway. Have a little compassion for your fellow humans.