Killing people does bother Geralt from the book, and should bother any non-mad human (even mutated) being.Being bothered by killing people and having to kill some of them when you must is other case though. Even when you don't have guilty consciences for killing some evil bastards you can't say that killing people in general does not bother you.Unless this question is precised i don't realise how could you answer No to this question and still stay in character.P.S. And i think that book-Geralt would try to stay neutral but at the end side with non-humans anyway. I remind you that when he was killet 5 years befor the game he was killed trying to stop non-human extermination.Siding with Order is in terms of book riddiculus but of course computer game has it rights and needs to give options to a player.