Your child are most important. Your duty as a father is to love and protect your children. If your new partner, simply "doesn't want your kids", I would leave her.
She obviously isn't a nice person. Of course you could always try counselling, but honestly, this isn't a little issue and you can't change a mean person. As for your kids with her, you have a duty to them as well.
Which means emotionally and financially supporting them, even if you aren't with their mother.
I cant really gove you an answer,but what I can give you is a way to a solution, that is you have to find the anglde that you relate to or peaks your interest. A good paper is one that people get drawn into because it reaches them ln some way.As for me WW11 to me, I think of the holocaust and the effect it had on the survivors, their families and those who stood by and did nothing until it was too late.