Firstly, Jacques, I thought your post was spot on. In answer to the original question, I believe peace is possible but only if we accept and live in our own reality accepting ourselves as we are and accepting others in the same way, without the need to impress our beliefs upon them or try to get more than the person next to us, to the point where the only way we can win is to kill them.
Personally, I could never believe in a God that is capricious enough to only love those who love Them in one way and only believe certain things about Them. All of the religious wars have happened out of a wish for some to force their beliefs upon others, believing their belief to be right and to be working for the good of God. To me, if you believe the same as me, cool. If you don't also cool, I'll see you in heaven anyway. I fully expect to see friends of Muslim, Christian, Seikh, Jewish, Druid, Hindu and no faith, in heaven.
It is not me who decides but God, so I am not going to waste my time fighting with anyone else about it. If you wish to chop my head off because I don't believe the same as you, then so be it. I could be wrong in my beliefs and so could others in theirs.