Well it would be relative "easy" from my point of view. Of course this is also over the top and meant to be sarcastic, but why not declaring #Facebook as ILLEGAL worldwide?

Just to note: They collect data from users, who have NO ACCOUNT on their server. And everything to note from the hearing of Mark Zuckerberg is "We have to change that!", sayed be a congressman. While #WhatsApp is already illegal with their way collecting data, why not also this step? #Thoughts

https://techcrunch.com/2018/04/11/facebook-shadow-profiles-hearing-lujan-zuckerberg/