I don't think anyone in the Rainbow Community (now that will probably put the pigeon amongst the cats) is thrusting their sexuality in anyone's face, or elsewhere for that matter.
They simply wish to be accepted as normal, like straight people, even be proud of who they are and their sexual orientation. Is there any reason why they should not?
The many answers here which indicate a 'Live and leave me out of it' attitude, which of course is anyone's right but is probably based on fear, sadly perpetuates the situation which sees people discriminated agaist in every social sphere.
That is why the OP was brave enough to ask, and research and learn and maybe at some future date even help change things.
And we need to change from the, 'I don't want to know' (or care what you're suffering) attitudes to 'I know, understand and support you.'
Almost every major city in most of the developed world now has a well attended (50,000+ in Auckland this year) Pride Festival.
Things are changing gradually, not because gender diversity is being thrust in anyone's face but because people like Mumsyface are moving from the dark, ignorant age of bigotry and daring to learn more about their fellow human beings.