Re this latest return dog. This is a different case from the general dog population. I sense that she identifies with this dog, and it is special to her for that reason. It went to a home where it was likely mistreated, and now no one likes it. You might point out that dogs feel more safe and secure when they're crated for at least part of the day. That dogs WANT to please their masters, and if they're out of control, they want and need for you to help them learn control. Clearly the dog suffered a trauma in some kind-- dogs just do not act like this for no reason. The kindest thing you could do for W and doggie at this time is to give lots of TLC to this poor animal. I predict THIS would get her attention.
You cannot reason with her on the subject of animals, and every time you try, you will be defeated and frustrated. Her passion and devotion is not based on logic or reason, and you cannot reach her through these channels. I would have thought you would get this after 30 years. You say you've been accused of "having no feelings." Well, this subject is ALL ABOUT feelings, so it's no wonder y'all can't communicate on it.
Stop trying to have rational convos about the animals.