From a human perspective, all other creatures are 'idiots'.
However, let's think about it from another person's perspective. If creatures have thoughts, how do they treat humans who only regard them as 'living creatures' rather than as 'life'?
"Humans are assholes."
Well, ordinary animals don't have thoughts.
Although there are generally no exceptions, the world is so big, there will be exceptions, right?
Goblins are mutated from ordinary creatures, and their populations are gradually expanding.
Human beings realized that their status as the 'ruler of the world' was beginning to shake, so they began to slaughter the goblins.
Two opposing advanced thinking creatures declare war in order to survive.
'Humanity has the upper hand by relying on machinery and numbers. '
But there is no way to completely eliminate the goblin creature. The consequences are serious, but humans can only do their best.
Likewise, the goblins are doing their best to survive.