>So maybe more like 10% could be affected?

Sorry I didn't have a chance to dig into your data, but even if it were 10%, that leaves 90% who are uninformed/disinterested and are easily swayed by the rhetoric: "If you've got nothing to hide then you are fine", "Do you want to protect ISIS from ASIO eyes?" etc...

The for case is so easily won in the public sphere that it's laughable. I wish it were otherwise, but most people cannot understand where we come from because they lack the background knowledge.

We're not special in that regard. As tech people we oppose this bill. How many other crappy bills pass without any protest from us nerds, just because we don't understand the particulars of climate/jobs/pollution/forestry/land management/policing/urban development etc.etc.etc.?

The moral, privacy and national-security implications of this law are distinct from the potential economic implications. Related, but distinct.