When you stop to think about it, a large dog is capable of doing severe damage to a person. Dogs have teeth. Isn't it ironic that society allows dogs to enter human society and trusts them to use their teeth responsibly . . . Yet those same societies often would not trust people to go about with large knives in their belts--let alone handguns. When people aren't trusted with weapons, then why should dogs be trusted with teeth?
Frankly I don't care what the Humane Society thinks. The fact is big dogs cause much more damage when they bite then little dogs. That is painfully obvious to anyone who has been bitten, killed, or had their "throut ripped out" by these dogs. That's all, that's it. It's likes saying a car travelling at 120 miles an hour does more damage when it crashes into my rear end then a car travelling at 45 mile per hour. You don't destroy all cars, but you make laws that have consequences when people drive at 120 miles per hour to protect the public.
Animals are not rational, they don't have the ability to reason, they are instinctual. For whatever the reason, big dogs (50-150+ pounders) do big damage when they bite. That's it! People like me generally do not like to see big dogs (Or ANY animal) do damage to people. Facts are facts.
BTW, if you came upon two "beings" drowning in a lake, and you could only save one;one was a complete stranger, maybe even a homeless person, and the other was your pet, which one would you chose to save?