Why does Darkside hate Superman with a vengance?

What is the history behind it?Why does Darkside hate Superman with a vengance?That's a good question! My thought is that Superman along with other Earth heroes have stopped Darkside and his minions countless times from executing his evil schemes.Why does Darkside hate Superman with a vengance?Its a long story but the short version of it is because when darksied first tried to take over and destroy earth superman stopped him but not easily. Darksied humilated superman (by brain washing him and made him attack earth) and darksied killed alot of people some even freinds to superman but what makes superman hate darksied so much is that darksied has no remorse for what he did and dosent care about what or who he kills. and that would be the short version of it in my opinion