Can a model predict someone is Gay? Who knows. Can someone create a model that looks legitimate and then has false negatives and positives? Absolutely. Also, they will probably be able to sell it to countries.

This reminds me of a movie called The Final Cut by Robin Williams. Its where everyone has an implant for recording everything and you get a face tattoo to bypass it. In this case you would get a face tattoo that would intentionally misclassify you as whatever orientation that you want.