Husband rarely helps

My husband rarely helps with the kids. I’m the one who feeds them, gets them ready for the day, gets them ready for bed, goes to appts with them,etc. He puts my son (18 months to bed) & sometimes helps with meal time, that’s it. The times he is with the kids which is rarely, he’ll be yelling at them or is completely short with them. My other child (6 years old) has autism & he is not patient with her at all. He also isn’t gentle with her at all. Since my son was born, he would yell at him every time he cried.

I’ve talked to him about being patient with the kids & being gentle. I would also point out to him that one child has autism & one child is a baby. He would just be completely upset & shrug it off.

I’m so tired of his lack of help & his attitude when he is with the kids. It’s like he hates them. He never seeks to spend time with them. I’ve even given him ideas of how to communicate/play with them. He doesn’t listen to me…