I don't think it's actually a defence now, except maybe in the court of public opinion. For example, I'm certain courts would find that it's still sexual harass

I don't think it's actually a defence now, except maybe in the court of public opinion. For example, I'm certain courts would find that it's still sexual harassment if you build a machine to go around looking up women's dresses instead of doing it yourself. The problem isn't a lack of accountability for the machine so much as it is a lack of accountability generally.