Yeah, I personally think it's wrong. I have no right to modify anyone else's body, even if it's my son. I don't want my son to get circumcised.
The problem is that my religion thinks otherwise.
My wife sides with my religion, as she's the same as me (although she ignores other, more important rules of our religion).
We don't have kids, and probably won't as we're now separated, but I always thought about how I could change her mind, or how I would have to cope with allowing the circumcision. It's a pretty unhealthy situation.