He as a place of shelter and food, til he goes to jail so he doesn't need any "help" there.
Did he consider seeing his kids instead of doing whatever dumb thing he did, that got him the jail time? NO! Then he can forgo their company now, and they don't get to be with a Mr Sorry sides either.
If he is in the p**p then it is wholly his responsibility, due to is action and choices and now he gets to live with his own business.
Keep him away from your home, your place of peace and harmony and don't let him anywhere near enough to taint it with a propaganda.
Children and mums first, in priority for me....those who have different agendas stay on the boat.