Contrary to what many people thing, Facebook, Google, and other companies do not sell your data! They are ad companies that use their private data to target ads, but they aren’t selling it to 3rd parties likely many people have been led to believe. This has created a market opening for nefarious companies to scrape these websites, compile the data, and sell it to everyone from police to governments to spammers.
I’m not saying there’s a right answer to regulation, but it’s incorrect to say that scrapers are always the good actors championing the public’s best interests.