From what I remember Judge Dredd is all over the fucking place with what it's trying to say. Like some of it's a piss-take on American superheroes and particularly Batman, some of it's a general satire of an automated industrial welfare state, some of it's commentary about how inhumanly incorruptible someone would have to be to responsibly wield the sort of power that police have, and some seems to be playing Dredd as a ruthless antihero who "makes hard, but right, choices." And that's even before you get to the long arcs that are like "what if Judge Dredd was in a post-apocalyptic desert?" or "what if Judge Dredd was in space?" that are generally weird but usually portray him unambiguously positively from what I remember.

Like on the one hand you have a character that unquestioningly enforces accountability for himself and other Judges (including one gag where he arrests himself for a petty noise violation on Christmas), frequently goes after the ruling class for their corruption and the abuses they inflict on the public, tries to non-violently deescalate violent situations involving people suffering from mental health crises, and declares that sapient non-humans have rights and can't be farmed like livestock, and on the other hand you have a character that actively commits genocide against the Soviet Union, ruthlessly enforces arbitrary rules, frequently massacres people, and violently upholds the house of cards that is Mega-City One's capitalist welfare state.

So in some story arcs he's written as a genuinely good character who seeks to preserve the safety and wellbeing of sapient beings regardless of what the law says, in some arcs he's a satire pointing out how incorruptible someone would have to be to wield the sort of power that law-enforcement or fictional vigilantes have, and in some arcs he's a complete monster but the story tries to justify it.