Jewish Rabbi don't preach killing anyone and are some of the kindest preachers of any religion on earth.
Perhaps in Jesus's time they wanted to kill every last Arab however this is because Jews were weak, Arabs overpowered most of the area militarily: and literally almost made Jews extinct. Self defense. Let's not talk little Israel and encroachment since who is encroaching is definitely an (unanswered) question. This is USA not Israel last time I checked.