No doubt, unity is something to be desired, to be striven for, but it cannot be willed by mere declarations.
We are different; we are always have been and always will be. However, different shouldn't divide us, but unify us because different is an asset.
Unity without verity is no better than conspiracy.
In other words, there need to be checks and balances. No, the religious shouldn't be able to kill. No, the religious shouldn't be persecuted. Being Muslim shouldn't mean your life is harder, because that is wrong, and not to mention it only reinforces prejudice. When you attack a community, they get to tell the story their way, they rally around their way, and you get nothing done. I don't have all the answers, but I know this. The more you press, the harder they never change. It's like a non-Newtonian fluid.