There are a lot of people judging you and your husband from your posts. I know you want help and it seems like you know where to direct yourself. As far as your spouse is concerned, you'll probably need to learn to detach from him and do things the way you need them done-his desires not considered. You have kids to take care of, he needs to take care of himself. I don't know what to say about the video game/TV day thing. Taking all the stuff to a used game store, selling it and buying diapers and baby clothes seem like a reasonable thing to do because he does not participate in any way with your children. Are you afraid of him? That's the only reason I could think of that things could get worse. Do what you need to to take care of yourself and your children.
"BUT" it's not the end of the world. 

He doesn't buy those video things 

Hoping you find peace and happiness.