It strikes me that the people who argue that the Bible condemns homosexuality and thus God disapproves of it are starting from a different set of assumptions than other folks are. Some of the Christians here argue that the Bible is the word of God, is infallible, and clearly spells out that God disapproves of "homosexuality." Other Christians here argue that the Bible is the word of God, but that it is not necessarily infallible and that its meaning is not always clear; they argue that the Bible requires interpretation, and not everyone interprets the Bible the same way. Still other Christians, notably yours truly, argue that the Bible is not the word of God at all, that it was written by fallible human beings who sought to understand and know God, but that it is the words of men, not God.
Another set of assumptions on which Christians disagree is the extent to which people should rely on the Bible as their source of knowledge and source of faith or belief. Some Christians here argue that the Bible alone should serve as our source of belief or faith, that the Bible is sufficient, and other sources of knowledge are lesser and flawed and unnecessary for understanding what God wants and God's truth. Other Christians here argue that the Bible is an important source of belief or faith, but that it is not the only source of Christian belief or faith and that other sources of understanding, such as scientific evidence and the perspectives of other faiths and our personal experiences, should also be considered in seeking to understand God and God's will. Still other Christians, among them yours truly, see the Bible as not a source of knowledge about God at all, but rather as a historical source of information about earlier cultures and about early Christianity and the life of Jesus.
Because we have people starting with such different assumptions, the folks in these forums often end up talking past each other. Because we do not share the same assumptions about faith, about knowledge, and about what constitutes "evidence," we don't influence each other's perspectives much.
To me, the arguments of Biblical literalists mostly sound absurd. I am sure that my arguments sound like that to them. It's because we start from different assumptions.