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.
Why is the go-to always "you must not have used it" in lieu of the much more likely experience of having already seen and rejected first-hand the slop that it churns out? Synthetic benchmarks can rise all they want; Opus 4.5 is still completely useless at all but the most trivial F# code and, in more mainstream affairs, continues to choke even on basic ASP.NET Core configuration.