My thoughts......
-Yes there are some wacky elements of Islam, but most muslims (at least those who come to the west) are 'normal' moderates like most Australians. We just see the violent, bonkers minority because it makes for a great news story. If you think Christians are any different, just think of what the religious right does in America. They have creationist museums. Bombing abortion clinics. KKK. And so on. In the UK - they had the whole Nthn Ireland thing, and to this day a Catholic cannot ascend to the throne. Even in the 40s-50s in Australia there was catholic/protestant angst here. All religion is silly but some take it a bit more seriously than others. I don't mind religious moderates of any persuasion, but abhor fundamentalists of any creed.
-War is utterly wasteful in terms of resources, human cost, and infrastructure, and should be avoided by a country unless 100% necessary for actual direct protection. As far as Australia is concerned, we seemed to be dragged into other countries conflicts without a second thought (USA, Britain). Sometimes, these are based on lies. As such only countries in the immediate vicinity should be concerned. It isn't our business, as are all the other smaller wars going on at the moment. If we are indeed in a budgetary crisis, we need to prioritise. Middle eastern wars in the 2000s cost the USA trillions, and has added much to their debt problem, when it needn't have.
-For the middle east to be peaceful it would need to be a religion-free zone. This means hypothetically removing all notions of Islam, Christianity and Judaism from the area. But this isn't possible, and never will be.