There are so many examples of Philip saying offensive things such as:
"If you stay here much longer you'll all be slitty-eyed." This was said to a group of students during a royal visit to China.
"If a cricketer, for instance, suddenly decided to go into a school and batter a lot of people to death with a cricket bat, which he could do very easily, I mean, are you going to ban cricket bats?" This was said in response to calls to ban guns after the Dunblane incident.
"It looks as if it was put in by an Indian." This was Philip talking about a fuse box in a factory.
There are so many more examples. Why was he allowed to act this way whilst representing the Royal Family? I like a laugh, I can take a joke, but he was so often just really offensive.