well then, if its a kick up the arse you want you can have it with bells on.
you are damaging your children by leaving them in this dysfunctional joke of relationship.
damaging them for life.
they will learn from you. from him. but more from you. they will learn that abuse is ok, that you suffer it, that you ignore it, that you do nothing, and then they will teach the same cycle to their children.
my son - he is 20, but he would never hit or hurt anyone, ever. he is gentle. that is not to say he does not get frustrated - because he does, and he gets in bad moods and does take things out on me, but i call him to account, and he ends up in tears and always says sorry.
we have known he has autism since he was about 5, and he was diagnosed at 7, so he knows his own strengths and weaknesses very well and knows what is and isnt attributed to his autism.
im sorry that probably isnt helping - but he has never been give licence to do whatever simply because he has it. If he does wrong then he knows about it, he still cocks up now, but he has to deal with the consequences.
sounds like you DH hasnt had that.