He sounds like a lunatic. Too bad you're tied to him for the rest of your life because of your child.
If he said these things once in the heat of an argument but during a calm conversation speaks more rationally and acknowledges that he was just blowing smoke and letting his ego get in the way of his brain and of course he's not a Neanderthal would never actually hurt someone, then I *might* - just might - give this a pass.
But more than once? He's psycho material. If he defends this statement in a calm, rational, totally sane moment, then he's the kind of dangerous, egotistical control freak who I would run from in a heartbeat and who I wouldn't hesitate to take a restraining order out on in the future if ever needed.
If he doesn't want another man in his child's life, perhaps he should focus less on his own ego and more on being the kind of man who would make a good husband so that he is actually married to his child's mother. Otherwise he WILL find himself single and that WILL mean that yes, you are free to move on and eventually if you meet a good man, involve him in your child's life as well. That's the risk of having kids outside of marriage or behaving in ways that are not conducive to marriage.