For a parent to state that they wished they never had children - what message does that send to their children? Would you say such a thing to your child? Once you have the child, you are committed to do the best by him or her. That would not include saying such a thing. Finally, my ex used these exact words once and I have never forgotten them.
I don't think this guy is a parent. He is saying that he has chosen not to get married or have kids, as is his right. Why does that make him an ass?