It sounds to me like you may not have used a lot of these tools yet, because your response sounds like pushback around theoreticals.

Please try the tools (especially either Claude Code with Opus 4.5, or OpenAI Codex 5.2). Not at all saying they're perfect, but they are much better than you currently think they might be (judging by your statements).

AI code reviews are already quite good, and are only going to get better.