I am not judging the dog, I am judging its USE.
Regardless of the language you speak, you have to recognize the difference.
I love pit bulls too, but they ARE killers (hell they used to be CALLED "kill dogs"), and I would not use them to guard other dogs. Especially other aggressive dogs. That would be insane.
Pit bulls are great as catch dogs, kill dogs, fighting dogs, etc. ... but (since I *do* understand THEIR USE) I sure as hell wouldn't choose to use them to guard other aggressive animals. Again, that would be daft.
And I am making the same point with these giant dogs of yours
I am 100% sure they ARE great at running off animals (hell, I would run my ass off if I saw one, LOLOL) ... but they sure aren't great for "guarding" smaller, aggressive dogs IMO.
Yes, if I lived in an area where there were grizzlies, mountain lions, etc., I absolutely would have my dogs in kennels ... with heavy wire ... and smaller chicken wire so the dogs can't put their noses through and get ravaged.
Jack