Christ, this is idiotic even by your standards. Where do I even begin?
1. If a mother pulls something sharp out of their child's hands, they haven't been violent towards a child. When a kid plucks something out of another kid's hands to prank them and throws it to a friend, their parents don't get hauled into school over their violent behaviour. It's just not a violent act, and you've just invented an arbitrary difference here in your imagination.
2. "Verbal violence"? What does that even mean? Who hasn't committed "verbal violence" during an argument? That's what an argument is. And believe me, they're very much a level playing field between the sexes. Do you think a woman is physically incapable of pulling an object out of a man's hands? Do you think a frustrated wife has never done that to get her husband to listen?
3. Why the almighty fuck would my partner be carrying pepper spray or a knife on them at home with me? And are you suggesting that a woman can get a knife from the drawer and stab a partner for taking a phone out of her hand and the law will side with her? You're playing the "I'm a respectful feminist" card, but it actually sounds like you're blurting out that "Society is totally skewed in favour of women" red pill shit I've seen you dribble all over this forum in the past.
I suspect the point you're fumbling towards trying to express is that conventionally when someone removes themselves from an argument by placing some kind of physical boundary between themselves and the other - by going into another room or demonstratively picking up a device - it's seen as "controlling" or domineering if the other person disrespects that boundary and forces the argument to continue.
What this blindsides us to is that refusing to have a discussion that needs resolving and instead sulking or shutting down the conversation is actually more toxic in a relationship and just as "controlling". And people who try to manipulate situations in their favour with such passive aggressive tactics are often shocked when you violate these boundaries they usually exploit.
In the case of Nick, his soon to be ex-wife has committed an enormous betrayal and wreaked incredible emotional trauma on him. For her to then continue to flaunt this in front of him with nakedly disrespectful lazy behaviour is a micro aggression bordering on macro. And yet as a society we seem to say that plucking a phone out of someone's hands and saying "I'm not going to allow this behaviour to go unchallenged" is a shocking, transgressive act, somehow more unacceptable than everything she has done. It isn't, actually. It won't harm her physically or emotionally in the slightest. And that's the difference between people being controlled by others and the people who don't allow it to happen to them.