>And even though my personal safety and liberty probably aren’t at stake, I don’t want to give any support to the global advertising behemoth, by allowing advertisers access to better information about me.

Giving the surveillance economy access to your habits means making them slightly better informed about everyone. That won't directly endanger you; the SE will just become slightly better informed about how people like you function.

This will enable it to increase the amount of risk faced by some other person that you will never hear of (and vice versa) if any of you is even suspected of endangering the SE, in proportion to the risk to the SE which people like you may hypothetically pose, as quantified by the methods of nepotism-powered pseudoscience.