Grabbing and selling your organs is illegal. This isn't difficult to understand

Exactly. There is a limit to what a private company can do on private land, set by "the government" (here it'd be parliament). You don't seem to be an absolutist about this, so we both agree that the government can and should tell private businesses what they can do on private land. Then the issue is only where the line should be not whether there should be a line at all.

I agree, it's simple to understand. Running biometric capture & analysis on every customer is also illegal in Australia.

Ease off the gas man