No. Really? Then the Domination power which is exactly what you described what stress should it be? Physical? Nope. It's Mental. For obviouls reasons.
Yes, and Domination involves not draining energy, but attacking the core of the target's being: their psyche and will. Thus it's mental.
If you force someone to stay still by making them WANT to stay still, that's mental. If you make someone stay still by shocking the crap out of them, it's physical. With physical damage/effects, they might want to do something, and they might try to do something, but their body just isn't capable of following through. With mental damage/effects, they might be fully capable of taking an action, but they can't bring themselves to try, either out of insufficient will, fear, or some other mental cause. Put yet another way, mental damage is damage to what or who you are.
How about a White Court Vampire's ability to feed off psychic energy directly through your emotions? No "beliefs" are involved - just emotions and draining of psychic energy. It is not your faith that is undermined there.
I'm not sure I understand what you're getting at. Yes, a WCV attacks your will, your personality, what you are. He's not feeding off your body, he's feeding off of your spirit/soul/however you want to call it. Thus ... you got it, mental attack. Similarly, a RCV's saliva changes your mental state. Thus ... mental damage. When you cast spells, you are feeding what you are into the magic. Mental stress.
You don't need to know someone to intimidate them. Or torture them. Or supernaturally terrify them.
Agreed. Though knowing your victim can certainly aid such attempts. This is why interrogators tend to try to learn as much as they can about their subject, so they can learn what buttons to press, and what methods are most likely to produce results. Different people react differently to different techniques.
Last but not least, attacks that affect the soul directly are also mental stress. No reason to affect that pesky mind with all its Lawbreakers when you can eat somebody's soul but as long as you don't kill them, you don't get Lawbreaker.
Mental is not just 'mind'. It is 'self'. As such, mind/soul/spirit/will/emotions are all lumped into 'mental'. Attacks against any are attacks against some part of what makes you "you".