I think what Nav is saying is that being gay and acting on it is a lifestyle choice, wich sets it apart from other sins like lying and stealing...well actually if you're a politician that could be your lifestyle too :laugh4:
In most christian doctrines sins are forgiven as long as you regret committing them, wich can't really be said if you've made it a central part of your lifestyle.
I don't agree that homosexuality is a sin, and I've got a couple of gay friends myself. But Navaros' beliefs certainly are a way you can interpret the old testament, among others.