"I fail to see why auto dealers should be defended from such competition."
After making the argument that other small business have been screwed by similar tactics, you say this?
Let's examine why it's worth defending auto dealers.... nobody has to service a toaster and it usually doesn't get sold more than once, it's a small ticket item, requires no real salesman to discuss cost, features, benefits, doesn't need financed or titled, nor do you pay property taxes on it, etc...
Now, again, I'm no fan of franchised auto dealers....but they are worth defending.
Unless you want to see more middle class skilled jobs go up in smoke.