I totally feel you!
My mom was a collector of wounded birds (not literally).
She brought a creepy pervy homeless guy to live with us because he was working at the church and she wanted to help out.
She let some unbalanced women who needed a place to stay live with us.
Not good boundaries (at least for protecting me).
So, I am drawn to the wounded birds myself.
I guess we all are, in a way.
It is an instinctual thing at this point I have to manage!