Don't Ask, Don't Tell (DADT) policy fully repealed!

Right. Because when people are shooting at me my deep seated survival instinct is to fear the people defending/covering/supporting me who I've trained with for weeks/months/years are going to spontaneously ass-rape me, not to defend myself against the obvious threat and focus on it. Clearly that's the more important thing in that situation. You need to grow up or something. You may speaking from your personal concerns or fears but they really sound quite childish when you put them in the very context you're explaining they'll cause everything to fall apart in.

Bigotry is not human nature. It's a learned response. Learned responses are almost always trumped by basic biological imperatives such as survival and easily trumped by more heavily enforced learned responses, such as trusting your team and supporting your fellow soldiers. More important those two trumps tend to erode learned bigotry as you get to better understand the subject of your bigotry and discover that what you've learned may not be the whole story and that your fears are misplaced. For that to happen though they can't be hidden away like a boogey-man where they remain a dark scary thing that may be lurking in the bed next to you waiting to get you at night.

Learned responses also are taken from your culture and subculture and even religious sects.

Look at this... take someone from a more rural section of say Arkansas and compare them to someone from the inner city of San Francisco. In a perfect world we say they will get along, treat each other equally, and have no animosity towards each other. Again in a perfect world. But the world isn't perfect even when we want it to be and again perfection is wishful thinking. Someone from a rural section of the country probably might have some learned indifference towards other people due to religious and family upbringing. There is still plenty of racism towards other cultures and ethic groups and indifference towards GLBT people in many places still in the world. Due to that there are plenty of people even from the most unlikely places that still are uncomfortable around people who are different than themselves.

Shidoshi you hit the nail square on. The prejudge of man is the same regardless of situation. Fear of difference is still the same as it has been for thousands of years.

People want the world to change overnight in some miraculous way to accept everyone in the same ways. As much as we would all want that and wish for it, it's still a wish, and mankind still even in the 21st century has a long road to travel before everyone is truly considered equal.

There are Muslims who still hate Jews, Whites who still hate Blacks, and thousands of other instances, even some heterosexuals who might not feel truly comfortable around homosexuals.

For all our technological achievements, humanitarian charities, scientific progress, educational improvements, and cultural diversity, mankind is still afraid of what it does not understand, and thus is the fallacy of man for his imperfection.