Actually all of those quotes could be described as degrading, depending on your frame of mind:

Quote:
"I'm going to take the children, you're never going to see them ever again!"


Read: The kids are MINE, I am in control of them and they are MINE to do with what I wish and YOU don't get to have a say. This is degrading.

Quote:
"You never contributed a dime and you are a lousy parent to boot!"


Read: You are a useless SOB, you are a wretched parent and WE don't need you OR your money and will be JUST FINE without you because, like I said, you are USELESS. This is degrading.

Quote:
"I know you're having an affair--there's no way you can afford ANYTHING without MY paycheck!"


Read: I make more money than you, therefore I make the decisions. You are a whorish SOB and you will be poor without ME around. This is degrading.

It's all about triggers and button pushing.
DISCLAIMER/WARNING: THIS IS A PERSONAL OPINION.