Personally, I'm enjoying the show. I understand that not everyone enjoys everything, and I'm fine with that. As for him being a supervillain, that's sort of the first joke of the whole series; he doesn't realize he's a supervillain. He's convinced he's the good guy, and his sidekick, who does HORRIBLE things, is also convinced he's a good guy, too. The only real redemption arc he's most likely to get from this show is to finally realize that he's a bad guy and not the good guy he wants to think of himself. It's why there's so many episodes where he's going through horrible realizations whenever he faces what he did to the one good guy in Suicide Squad and why the old man outside his father's house is constantly referring to him as a supervillain and explaining why he's not a superhero. Other than that, the show serves as a darker look at the DC universe where characters actually live in that world that we gloss over with such good heroes like Superman and Flash.