Why is it sick? We have all kinds of rules for cops, for example, and they deal with criminals for whom rules are nothing.
All else is just fluff for those who do not understand the first rule.
Amazing that you pontificate Israel play 'fair', when there is no such thing as a 'fair' fight.
Hamas stole an election, mudered the opposition, as they are doing now, and has vowed to wipe Israel off the map.
In some circles that threat alone would be enough to warrant self defense,long before what Israel is doing now.
Hamas has been shooting rockets into Israel for at least two years, killing women and children, the rest of the world says nothing. Israel finally responds the most effective way it knows, elimination of the leadership and the threat by pure military force, and the world condemns Israel.