I can't tell if you're insinuating that I am using sophomoric platitudes, but I hope you respect that I have been trying to speak mostly about my personal experiences.
However, the presupposition that someone will be prejudiced against you on the basis of their gender can also be damaging to social interactions -- such as this one.
I think we all know that people are prejudiced.
Confronting people on their prejudices can be damaging, or it can jolt them out of their complacency and get them to view you with a fresh set of eyes. It usually depends on the person and also how honestly and straightforwardly you present yourself.