just to expand on other answers... Childhood is a big part of our make-up, but we're not confined by it. All of us have to make our own choices about how we behave. You seem to have emerged from a bad childhood sensible and level-headed. Your husband has emerged... well, it doesn't sound as though he has emerged, he's still behaving like a child.
I wouldn't personally advocate dumping him; marriages are worth working on. The most you can do, I think, is make it clear you find his behaviour unacceptable. Counselling might well help him - if he wants to be helped. If he doesn't, then you'll have to decide whether you want to spend your life with a 'kidult'.
One other thing I would say is that if you don't have any children, you should stay that way in the meantime. Kids who refuse to grow up can get very jealoous and confused when real babies come along and need their mothers' attention full-time.