I have three children close to your children's ages, and understand how tough a situation like yours can be.
Because of the nature of BPD, your wife is almost certainly never going to acknowledge that she has a mental illness, so trying to get her to understand that is just going to feed the conflict. We can help you develop more subtle strategies to more effectively address the problems with your wife and children.
Can you give us some more detail about your wife's problem behavior and how you respond to it?
RC