I am an immigrant to the US from the Caribbean, and very proud of and missing my island of origin. If I had gone to the expense and trouble to plan such a family trip and my child said that to me I'd really want to yell at them.

But the thing is, I'm the adult. They're the child. Ideally at least I will try to figure out why my kid feels that way and try to help them feel better about the upcoming trip, since I can't leave them and I don't want to cancel. Yelling their head off won't help us get there. I can always go, later, and rant to my partner/friend/diary about what the hell is going on with this kid, as long as I don't give my actual vulnerable child a tongue lashing.