There's a big difference between a theoretical "Well technically they have all our data and they could share it with anyone and they could use it to target ads

There's a big difference between a theoretical "Well technically they have all our data and they could share it with anyone and they could use it to target ads quite precisely" In fact, that statement is true of the government as well. Most people just think it won't really happen, and if it does happen it'll be something fairly trivial like selling me shaving kits because I'm a man, and that my data isn't really all that revealing. That is vastly different from: "This specific data you gave facebook went to this specific company, in violation of facebook's own policies. The breach of ToS wasn't followed up, and we have video of the CEO bragging about fake news, blackmail and honey traps. This wasn't even a US company influencing the election. Your data was directly used to campaign for someone you probably deeply oppose. Not only that, but this specific targeting was probably highly important because we know the result of the election relied upon victories in specific states that are important to the electoral college whilst losing the popular vote. It also turns out that what had seemed to be deep real organic discussion topics turned out to be targeted propaganda showing a scary ability to control the public discourse Oh. And this is all carried out by a company whose CEO openly wants to run for political office and could use this to get himself elected next time."