What about the most infamous of his remarks?
If he were reincarnated, what would he like to come back as?
Prince Philip's answer: "I would like to be reincarnated as a killer virus that would wipe out X% of the earth's population."
He was a zealous believer in overpopulation, bringing the world population down to 300 million, etc. He probably had a scale model of the Georgia Guidestones in his bedroom or living room.
Now he's in a different...worse...place.
Those remarks are disputed. However, Snopes
(I know they are highly politicised, pozzed and the founder, his mistress, estranged wife are at war with each other) does muster evidence that he did
say that, and rates it as true. I think any reasonable person would accept the evidence mustered. It is a very disturbing remark, Georgia Guidestones level stuff, and seems to reflect an attitude among a portion of the world's powerful.