While I concede that the prospect of an warrant against visiting Israeli politicians might be an irritant Israel more so than most nations has used universal jurisdiction to prosecute the Nazis in Israel. One cannot laud the actions of the Nazi hunters and the legal process under which the Nazis were brought to Justice while at the same time contending it shouldnt apply to Israel. Univ Jurisdiction was invoked against Pinochet in UK and Charles Taylor a US citizen in the US who was found guilty in October for crimes committed while he was the head of Liberia's anti-terrorist services during his father's 1997-2003 rule, to suggest that somehow Israeli politicians should be above the law is silly and makes amending it impossible as any amendments would be seen as caving in to a Israeli lobbying. On the face of it is seems that a warrant against Livni might be justified as she was the FM during the Gaza war and questions remain as to the conduct of that war.
12 Iraqi troops, militiamen killed in multiple ISIS suicide attacks (AP)
from the article: Deputy FM: Arrest warrants harming Britain-Israel ties