The reasons they hate him is wrong but it doesn't matter. This is war, him getting injured is just normal. He didn't come here to play around. He was about to kill a guy with who he planned an alliance few minutes ago.
I think he will lose to them but he may outlast their suulong form. There is no reason to drag the arc even more by having him defeat carrot and Wanda. Plus he is a killer, if they lose they die. Ain't happening.