How to collect evidence for LLM reviewer? [D]

As the title suggests, I received a weak rejection with high confidence from a reviewer who is clearly LLM written, while all 4 other reviewers had given a positive score with low confidence.

Most of the points he raised are trivial and do not apply to my paper. All the baselines he mentioned are irrelevant to my task. They are the exact same points raised when I ran LLM simulations.

He is not replying to my rebuttal. I would like to know how people usually deal with this kind of situation. Do you collect evidence and report him to the AC? If so, how do you collect evidence? When you report him to the AC, do you report him on a low-quality review or LLM usage? Because my understanding is that while using LLM, other than grammar polishing, is not allowed, but it's hard to prove it.

Would be nice if people could share their experiences.