User blog comment:VillainNut/PE Proposal: King Sombra from My Little Pony: Friendship is Magic/@comment-2059440-20200217221148

Sombra is not as uniquely evil as his fans make him out to be, several MLP villains surpassed him and yes these are technically different canons but MLP is a franchise and despite many FiM fans holding nothing but contempt for the Generations predating FiM (without which their show would not even exist but whatever) it is worth noting many characters and ideas are recycled across the Generations.

the villains of G1 are incredibly evil, Tirac is an example and even Hydia is more grand-scale evil than Sombra ever was.. G1 villains literally flooded the entire world with an Eldritch Horror, tried to wipe out all life for fun (twice) and were fully aware they were horrible but decided to be so anyway (thus had moral agency).

Sombra is a symbolism of oppression and fear.. Tirek did worse than Sombra (if we want to go purely by FiM) and he had clear moral choice.

Sombra is an example of a Dark Lord that people over-praise simply because he is seen as "bad", he's not terribly different from antagonists such as the Sirens when you get down to it.. on a larger scale? yes.. but ultimately just like Sirens he's just a big scary monster for heroes to defeat.. in a franchise like MLP that has decades worth of material he's really not the "worst of the worst".