Yes, I see the HUGE MASSIVE LINE of gay men who have been rejected... At most, it'd be a couple extra pints a week (excluding the 'sudden rush' that will happen so that everyone can proudly proclaim they can finally donate blood.)
And the news cameras will be there (just like at the gay weddings) to document the event and show all the happy gay men lining up by the hundreds, showing off their bandaids and gauze on their arms.