As for arguments about homosexuality, pre-marital sex, ect:
The Bible places a very high premium on sexual purity. The Bible says that your body is a temple, and it is best not to defile it. This is fulfilled by having one intimate partner for life, unless you are a widower.
So whats the problem with pre-marital and homosexual acts? Statistically speaking (and there is tons of data out there confirming this), pre-marital and homosexual activities are rarely focused on having one partner for life, but rather for promiscuity and degrading ones' body through many acts with many people.
Why does it matter? Because sexual acts outside of wedlock correlate with a ton of other behavior. Divorce and abuse commonly correlate with pre-marital sex and homosexual activites. Furthermore, these acts intertwine with many problems for familes.
Therefore, having the standard of 'no sex before marriage' statistically reaps major rewards for those that follow it - less divorce means a stronger upbringing for children (there are studies that correlate the effects of divorce to higher instances of almost every negative activity including spousal abuse, suicide, alcoholism, crime and so on), a higher standard of living (single parent families are the #1 economic indicator of poverty), and other major statistical benefits.
The Bible maintains an other-centric view of people. Our bodies aren't our own. They are for our husband or wife. Our money is not our own - it is for God and helping others. Many times, we want to shake our fist and God and demand why he made certain uncomfortable rules, but in every case, you find vast statistical evidence that God is telling us that he foresaw the problems with allowing some activities, and for our own benefit and prosperity, spoke out against them.
Can a homosexual go to heaven? It is not for me to decide, but the key metric is if they have a relationship with Jesus, and asked for the forgiveness of sins. Once that has happened, it is in my strongest opinion that the errant activity will be removed as they seek a stronger relationship with God.
Back from the dead, I'm afraid.
