Oh! *eagerly* I remember hearing once that they killed each other. Like it's their nature. Like they don't just *don't like wizards* or another being, but more like they are - no - their nature makes them kill whatever is one their way. Again, the shorter you are the less you are respected in their community, they are violent towards them, plus the wizards and other creatures kill them as well because of the danger they are to whoever is near them, secluding the giants and making them stay together, contrary to their nature, making they kill each other each time faster...