This is not solely a european problem, and it's not new.

A faction of conservatives will scream up and down that they're protecting the children. Most people will generally side with privacy.

My suspicion is that the end goal is to classify people to target your opponents, even the ones who don't have much of a platform.

Once you can identify all the anonymous people on the internet and build profiles of all their communications with ML, you can easily generate a list of people who are against your policies and target them. I'm pretty sure you could find other subsets of data linking these people so you can then target them indirectly without too much friendly fire against your supporters.

In the US, One easy target I haven't seen any actions for is Marijuana. All those medical patients are in a database somewhere. All the debit card transactions in stores are in a database somewhere. It's still federally illegal and the punishments are nuts if prosecuted. Take your communications list, and the MJ list, target the ones on both and ignore the rest. You get to legally enslave your opponents under the guise of weed.