Well, the Aussies need to deport the leaders of those groups. Anyone else who wishes to stay needs to realize they are not in an Islamic country and that women are not agents of Satan - the Islamists are.
I wouldn't be surprised if there were similar sermons in U.S. mosques, but the media simply keeps it quiet.
Also, the imam is an idiot. It doesn't matter if meat is wrapped or unwrapped. Leave it outside and animals will eat it.