This is a completely made up fake story that's oft repeated by the Netanyahu administration. No basis in reality
And you should really learn about the history of Palestine and all the attempts at peace. Israel has occupied Palestine for decades and has murdered thousands. In 2014 alone they killed 2,300 Palestinians. 70% of those being civilians. In return Israel lost 87 soldiers in their invasion.
If you lost your brother, mother, sister, etc, wouldn't that push you to... doing something? Anything?
Hamas is NOT Palestine. But their existence ONLY makes sense if you read even a little bit of the history of this occupation.