Get a better lock. If you don't care enough to not get lock picked, whose fault is it? The bar to avoid this form of tracking is not high at all. It's trivial for anyone who is willing to put some serious efforts in defending their privacy
which is it? you contradict yourself in a single sentence.
And the bar is high for the average person, who isn't much tech savvy at all.
People: "Oh there is a poisonous substance in the water. Many people harmed" Your answer: "Yeah, why don't you have a degree in water safety, in the first place plebs? I take samples every week."
GDPR doesn't work like your imaginary all-expert world. Facebook should and hopefully be fined to nonexistence.