Were it not for Killer Bee's existence and Ay reforming his ideals a bit, yes I would hate them a lot. I still hold disdain for them for being treacherous to Konoha, trying to kidnap Hinata and Kushina, threatening war when they failed, forcing Neji's father to commit suicide, causing another ruckus in Konoha due to bee and beating up Naruto and disrespecting Kakashi and Naruto at the Kage summit as well as Ay acting like a hot-headed lunatic and doing whatever he wanted there without any consequence, not to mention their war-mongering ideals and attitudes, but yes, they have grown on me. I still dislike Karui and Cee, but Killer Bee is a favortie character of mine, Ay grew on me with his backstory and warming up and Omoi and Darui are funny and badass. Truth be told though, all five hidden villages are guilty for similar, same or worse acts. None of them are perfect, not even Konoha and they all realized this and believed setting aside their differences and vendettas and becoming one was the most logcial and constructive option to win the war. Sure, they all have their differences and sins, but at least they all have their moral ideals and can be reasoned with when the world is in danger.