I'm going to sound a bit paternalistic and anti-capitalist here, because I am. Facebook is no longer just a company, it's an institution that should definitely be regulated. It enables the rapid dissemination of societally-impactful information that may or may not be true. There was plenty of fake information on facebook around the 2016 election that influenced uneducated/uncritical/unintelligent voters' opinions of the candidates. Having content curation guidelines that are informed by non-facebook entities almost certainly is needed, imo.