He had started the conversation by indicating that he wanted to write his own rules. He was told that if he wanted to write his own rules, then surely I could write my own rules. He certainly agreed with this. Perhaps the strongest or the cleverest would win. He got the point.
Many people have the opinion that a homosexual lifestyle is wrong.
However, if it is just an opinion, then surely the view that homosexuality is acceptable is just as valid as any other. The point is, it is not a matter of one's opinion. Christians have high standards of right and wrong because they accept that there is a Creator and, as Creator, He has direct ownership over His creation. Because humans are created beings, they are under total obligation to the One who has absolute authority over them. It is in our own best self interest to obey God because He is Creator.