I feel for you and I am going through exactly the same thing with my husband. We don't talk anymore about it, in fact we don't talk much about anything. I feel I am walking on eggshells every day trying not to talk about it. He leaves books out deliberately on table, on bed. Magazines, leaflets. I just put them away but I want to put them in the bin!
I have so many things I want to say, I am screaming inside. Full of information I can't tell him because I know we would argue and it causes too much stress. It is easier to just go through the motions of everyday life than to forcefully try to get him to listen.
He has literally no idea about what is going on in Australia or anywhere else for that matter. He only knows and believes what is in their literature and what he hears at the meetings.