Yes and yes.
However since these sins are for the most part addressed throughout the Bible,
Right, all sins are wrong, why some people obsessed with one certain kind is a mystery to me.
Not sure what or who you mean by obsessing with certain sins? This issue has come up because of this article which covers Keyes faith and his public positions on homosexuality and now it has become personal for him in a lot of ways.
All these armchair quarterbacks seem to want to tar and feather him for how he has decided to deal with it. Discerning Christians however understand how he may have come to this decision.
No one size fits all, everyone would have to come to terms on the best way to deal with a homosexual sibling, there are a lot of things that would have to be considered. But once Maya decided to come out to the world and proclaim her mockery of God's Holy Word then Keyes had no choice but to proclaim her null and void in his life.
So you're a sin relativist? I assume that's unless the sin affects you directly? I bet you didn't even mind when Clinton was having sexual relations with that woman, Ms. Lewinsky...or even when he sinned by lying under oath about it.
I guess why worry about any sin since we are all sinnners. No one is wrong since everyone is wrong? That theory really can't stand up to a 2 minute logic test. Truth is not unloving. Trying to raise up a child in the way she should go is not unloving. It's essential. Some wrongs are worse and more dangerous than others. Enabling a destructive sin by being too timid to speak the truth is not love.