Not really, he was grinning on seeing him about to keel over and he knew was the fight was done. Nothing showed he was admire or impress by Zoro when he took his weapon and needed to fight him back in second round. He only stop once Kappa told him, not because of admiration or respect. Shows after he left him t die when he fainted.
Again how would he know they could save him since he isn't psychic to know there was medical knowledge with them. Talking about perspective, not obvious with Zoro not dying of course. Though it's how he was treated like a fodder by two guys he should have beaten, but instead he fainted in the end and make look like a joke. He didn't kill him cause he see this many times on battlefield and usually let people die on their wounds is not farfetched. He isn't sadistic to keep gnawing at him as shown either on being masochistic to kill.
He has to beat him to get his sword back as you can knck someone out without killing them. Gyukimaro shows he wouldn't go down until he did and he failed to do that despite having 2 rounds with him. Again it makes him look bad than good.
No? He smiled literally directly after he saw Zoro fell Killer. Considering later on the Fox didn't show any bad will or intent towards(it even being noted that the Fox had no intention of killing him), I think its pretty obvious he knew Zoro wasn't going to do die. Also, he would be leaving Zoro to die if there was no one around. But there were people around. Hiyori was actively watching the fight. Yes you could say it was a bit of a presumption, but I don't see why the Fox guy needed to stick around when A) He probably wouldn't have been able to help him anyway, and B) there were already people there to care for him. Also, considering how strong Zoro is, and considering the fact that even freaking Killer didn't die from his wounds, I think its pretty safe to assume that the Fox could have guessed that Zoro wouldn't have died to such a minor injury, especially when there was someone literally right there to help him, or get him help.
Your "left him to die" statement literally doesn't make any sense when you consider there were literally other people there, who were probably more capable of assisting Zoro than he was. Even if Hiyori wasn't able to help Zoro directly, she would have been more than capable of getting someone who could help Zoro, something that the Fox wouldn't be able to do.
He fought Zoro, because Zoro was persistent about getting back Shusui, which was an ancient and revered artifact, but even then, he didn't fight Zoro with the intention to kill(I think the fact he wasn't trying to kill Zoro the second time actually does demonstrate a level of respect for Zoro).
How was Zoro treated like fodder? Zoro's only mistake was letting his guard down when he fought Killer. Its pretty heavily implied that Zoro was going easy the second time he fought the fox, and it was also implied he was reaching the limits of his patience. It would not have benefitted Zoro to knock the fox out, otherwise he wouldn't know where the sword was. How is the fox going to tell him the location of the sword when his unconscious?
Zoro was clearly dominating the fox in the second round, literally sitting on his human form at some points. I don't see how that makes him look bad.
