> What's legal or illegal evolves with politics and culture. So there's no fundamental purchase there for the kind of moral conversation you were trying to elicit. If in a few years the people you accuse of wanting to control other people's speech are able to get some laws passed making the speech they want controlled properly illegal, I'd venture you would resist accepting that as suddenly legitimate - even if those things would be "straight up illegal" at that point.
The parent commenter was simply saying that the abhorrent examples you provided were not a point of contention, and not relevant to a conversation about free speech. They weren't attempting to put the word of the law onto a pedestal as you seem to suggest, they were simply pointing out that the things you mentioned are universally considered bad all around the planet, whereas freedom of speech is not.
The situation you've outlined in which one political party successfully silences their opponents through legal means is exactly why a "Site deciding this or that political view is now bad" is so dangerous.