Can you tell us what discrimination is being taught
I think the airport illustration pretty much hammered that one home for most people. Homosexuality is pin pointed and the value of the lives of a homosexual are portrayed as less (that is unless they leave their bags behind).
If this were the time of racial segregation in america, I would rather be accused of being "overly outraged" by anything promoting racial discrimination then later being accused of defending any vestige of it as "not that bad" regardless of the forum, the reason, or the prevalence.
Bible condones slavery too, probably more than it condemns homosexuality. If Watchtower makes a cartoon about slavery should we not be "over outraged" because everyone knows that's in the bible?