"No genocide or even massacre has ever taken place during the past 60 years against the Palestinians. " John that would very much depend on your definition of the word massacre. I can think of several massacres of Palestinians that involved Israeli armed forces within your 60 year timescale. You need to do a bit of research my friend.
Report: U.S.-led strikes in Iraq, Syria killed 459 civilians (AP)
from the article: Israel envoy: UN Human Rights Council betrayed its own values