Russia Today interviewed Israelis who favor new military action in Gaza. The video was posted on RT's own YouTube channel, which means they're responsible for the headline:
Blood Lust: Israelis back new strike on Gaza amid calls to prosecute 'war criminals'
By the way, Israel Matzav was one of the "blood lusting" Israelis interviewed.
Israelis are entitled to favor new military action against Hamas. It doesn't mean they enjoy it, as the word "lust" implies.