He is a 14 year old punk Japanese boy with a distant mom who lives in 80's japan. This behavior is in character. At the end of the series he would very well act more morally rational. It's a shame that people want to own and rewrite someones artwork and won't accept it for its genuine flaws and different point of view. This is different than wanting political or social political objects and symbolism removed. This is someone else's artwork who had there own life growing up in 60-70s Japan.The show isn't for small children and Yusuke does a lot more inappropriate behavior in this.