The point of the person you are replying to is that there isn't a clear consensus that the kind of facial recognition done by the pizza shop sign is unethical.

The point of the person you are replying to is that there isn't a clear consensus that the kind of facial recognition done by the pizza shop sign is unethical. Your argument is that it must be unethical because there is a clear consensus. Where are you getting your data from? It's fine to speculate about and individual's reasoning for why they believe what they believe but it's entirely useless for determining what the majority believe.