Earlier quoted context omitted.
Although that situation you outline might seem pretty extreme, spare a thought for those who suffer far worse discrimination in real life, where it actually matters. Cf. the bed and breakfast owner who asks "Are you gay?" and if the answer's "yes", shuts their door on you.
I have never in my life been asked if I was gay before any business transaction.
[1] http://www.independent.co.uk/news/uk/home-news/christian-bb-...