Free speech does not mean anyone should offer a megaphone to some private entity (especially non-individual ones). It's up to Twitter and Facebook to decide if

Free speech does not mean anyone should offer a megaphone to some private entity (especially non-individual ones). It's up to Twitter and Facebook to decide if they want such messages amplified on their platform and to earn money for that. Or we can make these platform utilities but then, we could also make ads illegal in public spaces (I can speak freely when I take the subway, but I'm not allowed to yell advertisements, and it's fine!).