In the realm of lack of choice, WhatsApp (also a FB property!) is pretty hard to avoid in certain countries. So FB the company is hard to avoid, but FB the site doesn't seem so to me.
Twitter and Facebook make money by selling engagement. Placidity of the user base, for companies that sell engagement, is a lost opportunity. They have an incentive to rile people up -- especially in an election year like 2020 when they were selling political advertisements to demagogue politicians.
This is something Apple has always flirted with and I’d welcome it as part of their brand. So what they might not actually take down FB. But clearly establishing their values isn’t just an opportunity to buy a product, it’s part of the conversation about what role we want technology to have in our lives and our society.