As for Australia, I suggest you go through this article:
Let's not kid ourselves that Australian sport is incorruptible
Betting/match fixing is like a plague. Once it spreads, there's no stopping it. Whether you legalize bookmaking or not hardly matters then.
So Australians bet a lot - that's all the article convinces me of. But at least in Australia these incidents are flagged very early eg. betting on the Melbourne Storm to finish last in the week before anyone knew about it. As soon as a couple of sizable bets came in for the Storm, alarm bells started ringing and investigations started. That's what legalising betting does, gives records and laws and accountability. Plus it lets governments get tax out of it. And incidently, that's why California wants to legalise marijuana - not because it's good, but because they can regulate sellers properly and get tax money out of it.
Pakistan are scum. They should all be banned for life tbh. I don't want to watch those low lifes play anymore. They can't be trusted anymore.
Strip them of their status already.
I doubt all 170 million are scum though and you are denying all those people a shot at international cricket based on a few idiots.
I would support a TEMPORARY demotion of Pakistan from international cricket - 3-6 months maybe. Just so have time to sack the old board and appoint a new board, new staff and conduct all relevant investigations etc. Basically start again.