"The Titan Giants? Haughty and arrogant, they look down on every other species except their own. No, it is beyond that: they believe that it is their benevolence and charity to allow other species to live and breathe without stepping on them and crushing them."
As part of the immemorial generation, this was Ayer's assessment of the Titan Giants. From a certain standpoint, the assessment of an entire species as "haughty and arrogant" was already an explanation in itself.
This could be seen in the Titan Giants' closely related relatives. The superior giants, such as cloud giants and magma giants, even looked down upon the dragons, always calling them "big lizards." Superior giants had it even worse for Silver and Bronze Species, directly addressing them as "mortals, little ones, and fleshlings," viewing them as nothing but potential sources of food.