Mum and husband don't get along

My mum has never liked my husband. We met as teenagers. He was raised by his two older brothers. My mum didn't like him because he is and always has been a bit of a smart mouth. We have 3 boys together and when we saw my mum today she tried to hug our 10 year old. He didn't want a hug. My mum kept trying so my husband said "He doesn't want to hug you. Stop." My mum was hurt by this. I told her he's just going through a no touchy phase. My mum asked whatever happened to kids respecting elders. My husband said "I don't teach that bullshit. My boys know that respect is mutual. You respect them. They respect. I also believe teaching blind obedience to children is dangerous but lots of adults are sick fucks." My husband and mum kept fighting over this and it just annoyed me. They can never get along. My mum brought up that my husband doesn't have parents. And he was raised by teenagers so he doesn't know anything about respect. My husband went to live with his older brother when he was 5, second older brother was 16 and oldest was 18. So he was technically raised by teenagers. But my husband said our kids don't have to hug anyone they don't want to which I agree with. I just wish my family wasn't always fighting because I love them both