Windthebobbinup1982, he uses his temper to shut down arguments. It's showing his Wife that he is bigger and stronger than him. Rather than take it to far, he then emotionally blackmails her by saying he will leave.
He is great, until the OP has a different opinion than him. Then he threatens to never come back, a tactic used to scare Women into thinking that will be a complete LP, unless they behave.
""I’m guessing it’s done by those who have genuinely been abused who are understandably super-sensitive to signs of anger and potential aggression. ""
No, it's those, like yourself, who is minimising this behaviour, who have become conditioned to accept being the subject of Male Tempers.
He holds her responsible for his behaviour, that's dangerous, because unless he takes responsibility, he won't change and it he feels it needs escalating, then it'll still be her fault.
The point about changing behaviour, is a valid one. Men come into conflict with each other every day. Work stuff, Neighbour/Parking squabbles and over Sport. They handle them reasonably. It tends to be only about their Wives that they lose full control.
He doesn't have a temper, or the OP would be discussing Work/Friends issues, as well.
The OP shouldn't have to bite her tongue, to not get a reaction. Having to ignore this will be having an internal effect on her. When you are told that your valid arguments deserve a violent reaction and you will be left, if you try to discuss this, your self esteem starts to be eradicated.