Auto wipers will never be able to know how well I, the driver, can see.

While this is true, I don't see how this is relevant. Auto-wipers detect the changes in optical properties of the windshield, not your ability to see.

Sure potentially, but I guess different people may have different desired settings for "how rainy" it needs to be to have the wipers turn on. Maybe other cars let you change this sensitivity level, but mine does not.

But my overall point still stands, needing to turn on my wipers in the rain is never something I felt needed "fixing" in the first place, that's why I think the added complexity of auto wipers makes it all downside.

But "turning on when rainy" is not the way auto-wipers are normally working.

What does that mean? Of course auto-wipers work by turning on when they detect rain on your windshield.