Allowing the perpetrators of any murder (including such horrors as a genocide) to get away without any consequences sends the wrong message to all people who would commit such acts. You bringing up the Israeli/Arab conflict in an article like this outlines only how perverse you are inside.
Riot police line up as fresh migrant protests erupt at Budapest railway station (Reuters)
from the article: Small-fry or mass murderer? Demjanjuk took his secret to the grave