Sure. But hardware trackers is the least of our problems. We'd need a hard crackdown on location privacy in mobile operating systems and the app ecosystem. Good luck with mobilizing enough "political will" when the economic interests of a whole industry is affected.
I don't think the economics are a problem. I think it'll be the fed they call in to testify that will shed crocodile tears about how some murdering pedophile was brought to justice using this data.
Very similar to how we lost a ton of civil liberties because shows like 24 bombarded the country with ideas that the only way to stop terrorism was torture.
Unfortunately, a good number of people will happily sacrifice liberties that will be abused simply because it might catch a single bad guy.
I live in Europe and helped introducing GDPR. It is good at what it was designed for: being a pain for companies that collect data en masse and cannot tolerate the slightest friction (think Facebook).
For everyone it else there are ways. Read about the six legal bases for processing personal data, especially consent and legitimate interest. You will be surprised.
