Also, humans and other animals that rely on vision have eyelids and tear ducts and are able to blink and get stuff out of an eye.

Poor, poor Tesla cameras freak out as soon as the sunshine is too bright or there's snow or rain or ice or mud in the way. You'd think if they're going to rely on vision, every camera mounted on the car would have a way to "squint" in blinding-light conditions, or "wipe" the lens or something when smudges, rain, snow, ice, mud, or bug-splat blocks the view. But then, Tesla is insanely cheap, and all that would require parts, and that would impact margins, and that would impact stock price, and so, this is why we can't have nice things ....