BWHA HA HA HA HA HA!!! That's an easy one ... 'cuz being LGBT is nothing to be proud of.
Now let me ask you libtard Congress critters a question ... how come you haven't issued a memo recognizing and honoring WHCM Pride Month, eh? Historically speaking, the most significant thing accomplished by members of the LGBT Community is the spreading of diseases. WHCMs birthed Western Civilization, the Age of Enlightenment, and the Industrial Revolution, discovered the vast majority of modern scientific knowledge and the application thereof, tamed the wild frontier, fought and died for the freedom of millions upon millions of individuals, and created the most successful and powerful nations this world has ever known. So, in contrast, there is absolutely no reason whatsoever for a so-called "LGBT Pride Month."
{WHCM = White Heterosexual Christian Male}