Pride 'in being' is exclusive. It sets an individual apart from others, without any merit to justify it. Pride in accomplishments is more justifiable, IMO. However, it can easily transform into the other when the accomplishments are shared.
I feels good, and it's empowering, and for the downtrodden, it's really hard not to excuse it, or even to support it. But fundamentally, it just isn't right. I could tell James Brown that I liked him because he was funky, but I couldn't tell him I liked him because he was black. It's so very messy. But we need to get away from it. We are all in this together. A black person might suffer panic attacks just like a white person on his right, and have nothing in common with the black person on his left.
Prides, to the best of my knowledge, do not exist to make LGBT people feel special - to a certain extent, they do the exact opposite. They tell the rest of society that such people are normal and that there is nothing wrong with being queer. It's pride in the face of a society that thinks less of you for being gay.
It is on some level a pedantic argument, but words are important. Words shape how we feel and portray ourselves more than we realize. So I think it's important to craft our message carefully: be happy, be confident, but don't be proud.
For one of my friends, it was as simple as telling her mom--who was also gay. My uncle had a very difficult time with it. My uncle has lived with the same "roommate" for the last 40 years. He grew up in the Catholic church, during a time that such self-actualizations did not happen in public. To this day, no one speaks of it. That is a shame.