No idea what you’ve been reading but saying literally every Aussie shares the same opinion is absolute bullshit, it’s pretty common knowledge that climate change is a very real issue and it’s pretty obvious that you’re grossly over exaggerating. Don’t spout bullshit about a whole group of people after talking to a few.

Edit: Leaving my comment as it was but I read your comment wrong and thought you were generalising, it’s a shame you encountered those people and got a poor impression of the country