Dogs are only a reflection of their owners.
One doesn’t “Control” dogs. One allows the dog to be who it was meant to be.
Not sure if I like your attitude about critters in your life.
It seems you want more than the critters can give. Don’t be such a perfectionist!
I forgot to mention the 2 dogs that I had that were biters were 2 out of 30 to 40 that I have had in my life (I am pretty old). We are supposed to be the pack leader and we must control our dogs. I guess your dog roams the neighborhood doing what dogs do, turning over garbage cans and pooping on other peoples yards.
I have had several dog that I would consider perfect but that came naturally to them. I have one now and he is so sweet and gentle (naturally) that I had him certified as a Therapy Dog.
Hairy and I go to convalescent homes and hospitals where people are stuck for months at a time.
Dog lovers are so glad to see us coming down the hallway, smiles light up their faces.
I didn't train Hairy to be what he is, God just made him that way but I still have to control him on a leash and keep him fenced in the yard so a car doesn't run over him.