You learn very quickly on the water to get out of the way of large private yachts when in open waters. There is literally no one at the helm. Even if they did notice you, they aren't in a position to halt the boats travel.
Your point only alleges that amateur yacht drivers act irresponsibly, not that naval autopilot systems are inherently unsafe.
It can't visually identify non-ADS-B traffic (and I'm not even sure yet if it will avoid ADS-B equipped traffic?), it can't comply with ATC clearances, it can't coordinate with other pilots in the pattern, and it will happily fly your aircraft right into potentially-fatal icing conditions. It certainly can't be used during routine flight.
Garmin Autoland is a wonderful piece of engineering, but even at best it's not a replacement for what a pilot would normally be doing to safely navigate. It's strictly there as a last-resort measure if the pilot is incapacitated.
Most hit-and-runs don't even result in jail time[1]. But sure, I can believe that hitting and killing the wrong person may once in a blue moon result in the law coming down on you like a ton of bricks.
[1] https://abcnews.go.com/US/hit-run-drivers-kill-people-jail-t...
It basically says that statistics on conviction are unknown, and sometimes people don't see jail time.
And no, the driver wasn't drinking. They were 17 at the time and went to prison instead of college. I remember it because they had a soccer scholarship. I was scared because it could have easily have been me going to prison