Meta (at the time Facebook) decided to provide it's services for free at the time of inception of the product. The EU did not force their hand and they're free to stop providing services to EU users at a time of their choosing.

I find it rather amusing how the notion that a business that can't make money in a given region is so wholly incompatible with your thought processes that you just jump immediately to "the EU is trying to get them to operate for free!" Like just... what if Facebook just wasn't in Europe? Like... that would be fine. The planet would continue spinning, Facebook would still make shit tons of money. It's honestly kind of wild how committed you are to this one shitty product remaining available in this one region.