As a boy I was taught a lesson by my parents that you seem to have missed. Perhaps your Folks didn’t love you enough.
Do not speak ill of the dead.
In Church I was taught that praying for forgiveness of others, and asking God to show mercy was a good Christian thing to do.
Perhaps this will ring a bell. Forgive. It is used rather frequently in the Bible to teach us to let go of anger and hatred.
You see I trust in God to decide what is right with the souls of the Departed. I don’t have an opinion on it. If God decides to send a soul to Hell, it isn’t my call. If God decides to grant them access to His Kingdom. Again I am in no position to argue the point.
I would hope the Lord shows mercy to the departed. Apparently you believe that you get to decide such things.
As for Hamas. I’ve had people trying to kill me before. I didn’t hate them. Why should I hate anyone? I could and did kill without hatred. Another of those lessons I suppose you missed out on growing up.