If they want to come and live in Australia then they must also agree to live by Australian laws and customs otherwise go back to where they come from, this includes the fact that Australian laws override any religious laws that they may want to follow. This is a country founded on Christian principals and although we may be tolerant of other religions we should not change our way of life to suit their weird un-natural ideas
There should also be a period set that if they do not comply, then their citizenship and rights are cancelled and they are sent back to their last port of call
