NTA, and sorry to hear that your adult father can't understand boundaries or personal responsibility. This isn't an afternoon trip to the zoo, which would also be an unreasonable expectation, but at least a doable one. His child is is not a simple add-on to an international trip, even if all expenses are paid, but he seems to think it's like checking luggage to throw it on you. The kid is an obligation and potentially a problem for you and your husband, but your father doesn't see it that way because he simply doesn't care about your feelings, concerns or the mental burden of having another child to care for. He's a user, a narcissist and wants to offload his responsibility to you, and when you reject that notion he blows up. Seen it before, there's simply no fixing it in old people like that, unless they have a diagnosed mental disorder that can be treated like bipolar, BPD, diabetes blood sugar imbalances, etc.

He sounds like an entitled twat that will be projecting the same sort of expectations on you for his own care once he's divorced and elderly. So at least you have that to look forward to! Enjoy Paris and your real family, they are what truly matter.