Your husband sounds depressed. Have you asked him if he is and asked him what he wants out of life? If he is unhappy, as his spouse, I see it as your duty to discuss with him ways his life could be happier.
Adjusting to kids is brutal for many people. Instead of seeing him as some meanie that is teaching your kids bad things, why not put him first? I honestly don't get this kids before spouse thing. If all is well between you and your hubby, all will be well with the kids. So, do you no longer love your husband? Do you not care that he sounds miserable and unhappy? Have you asked him what he would like out of his life to be happy? When those around us don't want to be around us, the usual thing is to go negative. Sounds like he doesn't feel much love.
Only you know what you want, but as someone who has been married for 18 years, 7 before kids, and who had some real rough spots adjusting to babies in your late 30s and early 40s, I can say that all households with babies are stressed out and not normal. In fact, my husbands best buddy came to him when his second child was 9 months and said things were awful at home, near divorce. Hubby said, suck it up man, make her happy, it's the hormones and lack of sleep and sex.
It is the hormones and lack of sleep. You don't walk away from marriage when there is a baby in the house. Nothing is normal when there is a baby in the house. We just are different people.
Time for a chat about the brutal life of a baby in the house and what you both want to do to repair your connection and rekindle your love.
I say this as someone who remembers baby number 2 and feeling my skin crawl when hubby walked into the room. Now, with baby number 3 at age 5, we are beyond all that jazz. I'm happy we hung together and talk our way out of that hell hole.
This is the very essence of marriage: hanging in there and climbing out of rough spots and being stronger for doing so.