Making issues complex is the sure way to go away from obedience of God's laws.
Abortion is murder.
Cloning will never erase the sin nature of man. Christians differ on this. Narrow your focus to one class of actions, those taken solely within the context of a loving, long-term, monogamist, adult relationship. I am not interested in discussions of sexual activities taken outside this context. I think the Scriptures are fairly clear in proscribing them.