The same reason you don't like homosexuals...

Is the same reason athiest dont like theists. What are the biggest complaint/worry from straight people in regards to 'the gays'?
(I am excluding the part that the bible says homosexuality is bad, because in order to believe that statement, you have to believe in the Bible as word directly from God, and was only penned by man. And this creates a circular agrument, "well, the bible says so." "yes, well, I dont believe the bible is God's words, but man's, men from thousands of years ago" "well, no, it came from God, and i believe so." "okay... still not answering anything her...", and at this point it just becomes a mud-throwing, unending argument that pits ego versus ego)
Here are the most common things people dont want homosexuals to do:

"I dont want them turning my children gay."
"I dont want them just fucking each other in the ass in the streets, and flaunting their homosexuality everywhere they go, and on everything i see."
"What they do in the privacy of their own home is their thing, just dont try and bring me into it, no sir."

Here are the most common things athiests dont want theists to do:

"I dont want them turning my children into theists"
"I dont want them just shouting out their beliefs all over the place and in the streets. I dont want their beliefs everywhere I go."
"What they do in the privacy of their own home is their thing, just dont try and bring me into it, no sir."

Now, take for a moment, if you are thinking of arguments, please hold off. If you are a theist, imagine that your worst fears came true:
Tomorrow morning, you wake up, and everything you feared has happened. Homosexuals are right outside your house fucking each other in the ass and have gay sex on almost every street corner. Some people are waving signs, and you cant go far without seeing a billboard, bumper sticker or t-shirt that says "Love gays!" or some inspirational quote from a famous fag. And your currency, the thing you value most, money, the very thing that drives almost everything in the world, says on it "In fag we trust". At work, you see men kissing men and women kissing women and fondling each other. And if you try and say anything, everyone looks at you like you are a pervert for not enjoying same-sex love. At school, your children are being taught in Sex-Ed both sides of the equation, how to have sex with males, as well as females.
And the government gives money, and tax breaks, to gay-based organizations. And only homosexuals who demonstrate their homosexuality are elected into any government office, not because of a law, but because the majority of people in this fake USA only elect people who will pass bills for gay-rights, and who publically display, as often as possible, their homosexuality.

To be fair, I am not a homosexual, and am in fact happily married. I do not have many gay friends, and I have no real backing from the gay-community.

So lets take this paragraph now, and just replace words here. I am not restructuring any sentences, and this is not a simple trick of english language that completely flips any context. A single word in a sentence can change a meaning, but here the idea is the same, a few extra words were deleted to keep content: (i.e. the bark of a tree, the bark of a dog)

Tomorrow morning, you wake up, and everything you feared has happened. Theists are right outside your house converting people and have churches on almost every street corner. Some people are waving signs, and you cant go far without seeing a billboard, bumper sticker or t-shirt that says "Love God!" or some inspirational quote from a famous theist. And your currency, the thing you value most, money, the very thing that drives almost everything in the world, says on it "In God we trust". At work, you see men and women wearing crosses or praising the Lord. And if you try and say anything, everyone looks at you like you are perverse for not enjoying God's love. At school, your children are being taught in Science both sides of the equation, evolution and creationism.
And the government gives money, and tax breaks, to faith-based organizations. And only theists who demonstrate their faith are elected into any government office, not because of a law, but because the majority of people in this real USA only elect people who will pass bills for faith-based-rights, and who publically display, as often as possible, their faith.

So, I submit the following: either accept gay people, as everyone else, or just quit saying that those are your concerns. Gay people aren't like you, they respect your privacy, your beliefs, your lifestyle, maybe its time to start reciprocating the same? Because I bet that if homosexuality ruled this country, it would not infiltrate every aspect of American society as badly as theology has...

Disclaimer: I understand it is not as bad here as in other countries. I understand I am privileged to be an American. So if I recieve any comments regarding my patriotism, love of country, or the fact that it is way worse in other countries, I will promptly remove it from my site. Also, any arguments that become cyclical (based on circular logic) will be removed as well, because that is, as i said, an endless cycle pitting ego versus ego, and nobody wins.