I always envisioned the rasha of the Haggadah as somebody who is li’hachis, out to attack and mock the yiddishkeit that they have rejected. For somebody in that frame of mind, no kiruv will help. As the Brisker Rav famously said, one can only respond with answers to a question, but you can’t answer an answer/justification.
It should also be noted that the Haggadah specifically says to knock out the rasha’s teeth, which is taken to mean his ability to spread his poisonous attitude to others. We don’t issue a sharp retort at the rasha to punish him, but to dissuade the other children from following down his poisonous path.