According to Reuters, which isn't known for sensationalism, this is a quote from the recording of Farage's speech:
“Terrifying! Here was Harry, here he was this young, brave, boisterous, all male, getting into trouble, turning up at stag parties inappropriately dressed, drinking too much and causing all sorts of mayhem. He was the most popular royal of a younger generation that we’ve seen for 100 years.
And then he met Meghan Markle, and it’s fallen off a cliff.”
So does that mean it was OK when he wore Nazi uniforms and was generally a bit of a "lad"? I don't suppose it has anything to do with having settled down with a mixed-race wife.