I think you have this comparison backwards. In the Giuliani case, it seems like the kid might be the normal one and his father is the "embarrassment."
I don't know much about Andrew Giuliani, but when you consider his background (affluent Catholic prep school in New Jersey, Duke University, prospective golf pro, etc.), I'd be willing to be that he is -- or will be -- considerably more conservative than his father is.
Your "hunch" about Rudy's son is completely unsubstantiated and, therefore, worthless.
"I'd be willing to be that he is -- or will be -- considerably more conservative than his father is."
I'd be far ore willing to bet that he's a spoiled, pampered child striking out at Daddy because while he got the Corvette for graduation, he didn't get the pony for his 7th birthday.
The point was that if you wanted to bring this sort of thing into the debate, you'd have to be willing to be fair about it and recognize that even the Gipper had a rocky relationship with his kids, and it didn't hurt him, did it?
Reagan had a rotten relationship with his kids and he's a paragon of virtue; Giuliani has a rotten relationship with his kids and somehow that one more indication of his affinity for Satan.
Go figure.