Genocide is usually a good thing. Think about it. Let’s say a new law is passed in which there must be more men than women. This would mean men would rise up and stand up against the evils of females and reduce the population to not very much. They would not be seen as evil murderers or criminals, but heroes for purging the world of such evil and inferiority.

So yes, it is moral and just. It is a way of cleansing out impurity.