Why would Prince William and the Middleton girl like Meghan?

I can think of lots of reasons they would dislike the gold digging slag who snared his half brother.

They're getting dull again. With Charles next, William having the personality of a dead moth, and HM being almost 100, they needed a new storyline to avoid redundancy. The Christmas feud drama will develop into a Spring reunion. Whatever. I hope to see Diana's sapphire choker on Kate soon. I think she will have the jewel set into a longer setting. She hasn't done chokers at all, yet.

Two questions to the questioner -" why are you referring the Prince William's wife as 'the Middleton girl'? Are you deliberately trying to sound offensive or do you speak so disparagingly about many other people?

Because she's well famous for being an actor, which involves having a talent. They are not used to having talent, it doesn't come naturally to them. Also Meghan is a party girl and does party things and can dance better than your dad, so they watch her closely and pick up tips and such.

Why not - as if it matters, or is anybody's business other than theirs?

Because they love Harry. And that's what you do.

Kate through no fault of her own has been hit by scandals

they - not the Royal family but a controlling entity in the shadows - planned for Megan's considerable baggage and racial heritage to bury Kates stuff

and for Kate to emerge looking spotless while "revelations" of Megan's past are drip fed to UK people

Because she's now 'family" so they have to. It's the same reason why people in your family pretend to like you.

Why wouldn't she? They're both social climbers aka gold diggers.