Some people have to travel for work. For Canadians, lots of international flights connect through the US (especially if you're flying on the cheapest routes), and there's no way to transit through without "properly" entering the country. While the thing in the post doesn't yet apply to Canada (due to us not requiring an ESTA), it very well could become a thing soon. That would be pretty awful for everyone.
This is literally a data collection scam run by US intel / law enforcement to collect biometrics with some “plausible” reason. Now it’s a chance to grab your passwords and private conversations too. Act accordingly,
