I've joked in this thread, but seriously, if people are offended by United being more inclusive to the LGBT community, then there's no helping them.
I'm 37 and believe that this kind of bigotry will die out in the most part during my generation. The previous generation have struggled to come to terms with this, and also race to an extent.
As an example, my kids don't describe an Asian or African kid in their school by the colour of their skin. They just don't notice skin colour as the biggest differentiator.
There's a girl in my daughters class who lives with 2 women. My daughter has never told me that "X lives with 2 mums". They just don't notice shit like that anymore.
We've worked hard to get this shift in mentality.
True story...
A relative of mine is gay (male) and his uncle said to me - "As long as he's happy, i just find it weird. It's not normal!"

. This is what I mean by the previous generation,
many, not all, still haven't come to terms with the fact that being Gay isn't a choice.