True but we are in the process of domesticating them in the first place. We are breeding them year after year generations after generations to live in close associations with humans. We can't necessarily tame them nor can we use them like a horse can but we are in a way domesticating them. All breeds originate from somewhere, the rottweiler in germany etc. one place thinks of a way to breed the animal to a way that is useful for us, snakes are to instinctual based and don't have enough intellegence to be able to train them to certain uses.
There's more to domesticating an animal then keeping them in captivity. A snake will never be truly domesticated. You need to look into terms properly befor emaking such posts. There is only something like 26 species of animal in the world that can be truly domesticated. This is because domestication relys on social skill similar to that which are displayed in humans. Dogs were probably the first to be domesticated, because they use pretty much the same signals we use, such as facial expressions and body language.
Germany is a big area, so saying a rottweiler resides from germany says nothing. Germany is probably a bigger area then our iron ranges and PNG combined, so how does that come into the GTP debate.
All breeds of dog have been domesticated for thousands of years and are far from anything resembling a wild animal. They still contain some basical instincts yes, but these still reside in modern dogs because they're built in instructions that are near impossible to simply breed out.
I'm sorry to be blunt, but you have no arguement here. You may as well be comparing tuna with bears....