AI submissions are getting hate because the code isn't good and isn't designed well and the person submitting it would also know that, if they understood what the LLM wrote. Hell, maybe they could even re-architect it into something worth submitting in the first place.
I use AI tools semi-frequently, to get answers, to riddle problems, all kinds of stuff. However if you just punch directions into ChatGPT and copy/paste the answer, you are not growing as a dev, you are not learning, and yeah your code is probably shit. Not sorry.
Edit: And I feel it's an under-observed point that AI-dependent devs constantly try and hide the fact that they are doing exactly that: copying from ChatGPT, because they also know it's shit and they will be judged. So just... STOP DOING IT.