A number of the people "killed for no reason" are ultra Orthodox Israeli settlers who use the superior might of Israel to steal land from the Palestinians. They view the Palestinians as human garbage. The Israeli government has encouraged this settlement policy for decades with the help of the US. The Israeli settlers take Palestinian land and bulldoze their homes.
So yeah it's wrong that truly innocent people suffer and die, on both sides, but these Israeli 'civilian' settlers aren't blameless either. They are essentially thieves backed by the might of the military.
Let's not forget how this started.
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