Therapy with abusers is not recommended and he IS abusive.
@IvanPee Are you writing this as a professional?
If you are, I'd take issue with that. if you are not, please don't repeat things you have read online. I've read this on MN and I don't know where it's come from.
What I , and many other posters are saying, is that this issue is WAY beyond the 'help' of anon posters on a forum.
Half of them just saying they experienced something similar.
EVERY family is different. It's no good giving 'advice' based on your own parenting. You are not the OP, her children are not you, her husband is not your father etc.
It's up to a counsellor/ psychologist/ family therapist to decide if the OP's DH is suitable for therapy.
And I didn't actually suggest 'therapy'- I suggested parent coaching which is very different. It's often workshops, group discussions, or 1:1 if you want that.
The vital requirement is HE needs to be wiling to try something like that. if he's not and won't take the situation seriously, then yes, the OP may need to end her marriage.