Silly flowchart. It is funny but inaccurate. Homosexual is not the best choice. Technically, everything is sin because sin simply means not perfect, not holy, not God. The Bible says in Romans that the law, the commandments, like thou shalt not murder, steal, etc, serves as a mirror to show the dirt on our face. But there is more to it than that. Also, Romans 1 talks about homosexuality. I can talk all day about these things. Yeah, people can be homosexual if they want. I don't care what people do. But they should not. But they can.
RE: Are there absolutes? Are you absolutely sure?