Islam has no representative. There is no one on this Earth that has the authority to speak for Islam until Jesus returns.
I do not support the death penalty and I have always been a strong supporter of gay rights and on the topic of adultery.
It is not for me to be judge, jury and executioner.
I have no moral ground or authority to preach to other people on the rights or wrongs of their actions, it will not be me they will answer to but God.