Okay, let's pretend that you're a giant cockroach. If you found another giant cockroach that was a different color, like red or purple, would you fight it just for that reason? Or would you wait until you found something that you didn't like about that differently-colored giant cockroach, and fight it for that? Perhaps you would try to make friends with this giant cockroach just because it was a different color than you were?
What if this other giant cockroach that you met had a gun? How would you feel about that? Would you laugh because giant cockroaches don't have thumbs, and are therefore completely useless as marksmen? Or would you be afraid that this particular giant cockroach had found some secret cockroach way of firing a gun with any amount of accuracy? If the other giant cockroach was a different color than you, like red or purple, would that increase your fear that it could use the gun on you?
Most importantly of all, would you try to eat yourself if you were a giant cockroach, just to see if you tasted good?