Allowing the bad to breed and teach evil is where we went wrong. islam and anything like it needs eliminated. We can then easily deal with the one off murderous ones.
When Jesus comes back on the Mount of Olives, his robes are stained in blood. If you read Isaiah 63, it is the blood of His Islamic enemies. Unfortunately, It appears our western leaders are adopting Islam in order to not fight it. But Jesus Christ himself is going to fight Islam and destroy it entirely...
If God agreed with you, He would've killed Adam and Eve immediately.