Ok, let’s think about that for a second, do you think that means no one has the right to tell anyone that they’re wrong because it’s impossible to do; if no one’s ever supposed to tell anyone that they’re wrong, they just broke that rule. They’re telling me that I’m wrong for judging.
I think you mean don’t insult, degrade or disrespect anyone even if they’re doing some really bad things. Jesus warned his disciples to stay away from wolves in sheep’s clothing and anyone who was trying to lead them astray so He asked us to make correction judgements.
If you sat here and told me you are a child molester, I wouldn’t say "Well hey, who am I to judge." But why we would both agree that’s wrong?
So the question comes, who makes the rules and how can we know them?