Why did he hate us?

If we rejoice in the death of any person, what does that say about us as a people?
The Bible teaches in Matthew 18:21-22
21 Then Peter came up and said to him, “Lord, how often will my brother sin against me, and I forgive him? As many as seven times?” 22 Jesus said to him, “I do not say to you seven times, but seventy times seven”.
I have seen many posts rejoicing in Bin Ladens death – is this what Jesus taught us? Is that how Bin Laden saw us? A people so full of hate that we should be destroyed?
I wonder why Bin Laden hated us. Would things have been different if he knew us? Or is it that he knew us so well he felt the only way to save the world was to eliminate us?
If we could accept people for who they are, if we could allow people to live as they believe, if we eliminate hate, could we have stopped Bin Laden before 9/11? It scares me to think that it may have been our actions that started us down this path?
What is the lesson here? How do we preempt the next Bin Laden?
Not saying the guy wasn’t a loon, but there is usually some logic in the loony.