They care, but realize that there is no such thing as privacy anymore. The amount of obsession required to maybe maintain some degree of privacy is not something most people are willing to do.
When the average person thinks about "online privacy" they think about keeping things private from other people. They don't think about keeping their data private from the companies hosting/processing their data.
That research study also concludes that “59% of people have no understanding of what companies do with the data they collect”
To me, that says the average person doesn’t care enough (they care, just not enough) to do anything about it.
They might care enough to spend 5 seconds signing a petition, but not enough to spend 5 minutes installing an ad blocker, and definitely not enough to spend 5 hours doing anything more extreme like de-googling their life.
