So in this case there is a person at the other end. They decided to just use an LLM to write the message instead of writing it themselves. It sounds like it's different from pure spam that you're getting.

If you're looking for the human touch, what about trying to offer a 15-minute zoom call instead if they want to discuss something with you? That way you'll know they're human (at least for now) and you get to connect about a shared interest.

I agree that it's a problem. I think shouting into the void isn't going to change anything. It's just going to get worse. It's similar to how I never answer my phone anymore due to spam unless the call is from a saved contact...and even then it's not 100% reliable.