One can point to Australia's COVID death rates (~4 per 100,000) in comparison to the United States and the United Kingdom (~200 per 100,000) and make a case for that.
This legislation is far less justifiable, and should have no reason to exist. By associating the two issues, you are weakening the case against it.
There is some justification for nearly all authoritarian laws. One can point to the low crime rate in Singapore relative to the United States, for example.
People who oppose authoritarianism do so because it's not worth the cost, not because terrorism, child abuse, and disease aren't real problems.
Is it good practice compare a very large island that has 2/3rd the population of California, or it’s 1/10th the population density of the whole of the USA?
Seems like a flawed argument for at least a dozen more reasons.
I'm not interested in pursuing this debate, but I will point out that our highly urbanised population means that it's not as cut and dry as you're making it out to be.
This legislation is far less justifiable, and should have no reason to exist. By associating the two issues, you are weakening the case against it.