How do I deal with my dad encouraging my toddler to use violence?

I'll be living with my peaceful husband soon. Honestly, sometimes whenever I hear my father talking greatly about violence and physical punishment, it makes me want to puke. It feels like someone with poor education speaking. He believes it's either that or sweet talkings; talking in extremes.

My son is a toddler (16 months old) and my father kept saying that one day in the future, if his classmates insult him, he can beat them, break their nose and let's see if they were ever bother him again. Meanwhile my husband is the type to get away from arguments. The only single time he ever got physical with another man is when that man grabbed his neck and started chocking him. But he stopped when the guy was neutralized and left afterwards.

I have my husband's same concept. If my son ever deals with a rude classmate in the future, I would advice him to reply back with words or report it. I wouldn't want my son to lay the first fist unless it's really in self-defense and the other boy just attacked my son and isn't stopping. Otherwise, I hate violence and physical punishment. I hate the idea of hitting when it's not in real, legitimate self-defense.

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4 d
I can't stand people that use violence for words and think getting respect is getting feared. Isn't giving a classmate a beating just because he called you names going too far?
If my son were to follow that horrible advice, he can be expelled for that or I can get sued by the other boy's parents since it's not self-defense at all.
Updates
4 d
My father makes fun of my gentle approach. He thinks my gentle approach is about only sweet talkings and being a pushover. It's not. I still believe in rules. I still believe you can physically defend yourself against someone physically attacking you nonstoppable and trying to hurt you badly.
How do I deal with my dad encouraging my toddler to use violence?
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