Dean is a moron and he is taking incorrect, widely-publicized views and stating them as a fact. Secondly he (and his church) is lying/ignoring/disqualifying about what the bible says.
"The overwhelming evidence is that there is very significant, substantial genetic component to it," Dean said in an interview Wednesday. "From a religious point of view, if God had thought homosexuality is a sin, he would not have created gay people."
This is an interesting website which shoots holes as big as dean's in his statement.
On the side bar you will find links to some very good information.
If you spend enough time on the website you might find this link.
I would like to bring up the point that the entire human genome is mapped, which means that we know more about the genetic makeup of humans than we ever have. Additionally, the fact the above website exists means the case is still out on the "gay gene". If anything, our extensive knowledge of the human genome has shown simple switches do not exist in every case. In some cases, the genes only predispose someone towards certain behavior, such as a "fat gene". There are plenty of skinny people who have fat genes, but they are not fat because of their environment or choices they make. These feeble attempts to blame people's behavior on conditions out of people's control are truly sickening.
Secondly, I normally don't bring the Bible up, unless some one does first. I do not see how the church dean is apart of can say homosexuality is not a sin (from a Biblical perspective). The only way to do that is to take parts of the Bible and fit them together to form a view you want to see. In other words manipulate it to mean what you want it to me (consciously or unconsciously). Do you really want someone who engages in spiritual self deception to lead your country?
A direct quote for the bible itself:
Do you not know that the wicked will not inherit the kingdom of God? Do not be deceived: Neither the sexually immoral nor idolaters nor adulterers nor male prostitutes nor homosexual offenders nor thieves nor the greedy nor drunkards nor slanderers nor swindlers will inherit the kingdom of God.
Only thing I can say positive about dean is that he is liberal on all counts (and that is consistent).