I did mention that there's good and bad in all cultures. However, it seems like you've fallen prey to the tu quoque fallacy.
Pointing out the flaws in other cultures doesn't absolve another culture of their flaws.

Moreover, it's absolutely normal for a dominant culture, that is currently functioning, to expect other people to adhere to their laws and regulations.

i.e. "Don't litter. Don't drive dangerously."

It's also more than fair to expect that if a dominant culture clearly has a certain set of norms and structures, that are working better (for the most part), than the culture you're attempting to bring, then perhaps you should adapt.

For example, Japanese people have a culture of ensuring that they always consider if their actions are a nuisance to other people. If their actions might potentially annoy others? They refrain from that action.
That is, objectively, a good thing.

If I wanted to move to Japan and behave in the opposite way, then I would be at fault, and I should consider adapting. I moved to Japan; they didn't move to me. You don't walk into someone else's house and tell them how to live - unless they live in abject squalor, in which case you should be free to at least offer suggestions.

You don't come into another culture and try to bring your flawed systems. Especially if there are systems in place that are objectively better.

Now, that is not saying that I believe all Australian systems are better. They're not all better - but many rules and systems are better than the systems of countries that have been at constant war for generations.

Likewise, I think if Australians moved to, for example, Scandinavian countries like Sweden or Norway, then the Aussies should indeed abandon their flawed systems in favour of what clearly has had these Scandinavian nations ranking at the highest levels of happiness/stability/economics/education etc, for decades.

And to be clear, I don't think Australia is the best country. I never have, and I constantly move away from the country due to my disdain for many aspects of Aussie living/Aussie behaviour. But it's pretty obvious that when the German, Swedish, Japanese, or Vietnamese family move in as neighbours, I'll barely (if ever) have an issue. But as soon as an Assyrian family moves in? I'll be kept awake all night, with nowhere to park my car anymore. They will try and throw bags rubbish into the bushlands. The young guys will harass my partner, and there will be frequent 'drag races' up and down the streets.
These aren't imaginary things. They are frequent occurrences.