Semantics and the splitting of hairs.
Please excuse, I am not always the most clear. Allow me to more accurately re-phrase my thought.
I believe fornication is more a perceived sin because of some religious dogma that has little to do with what Christ taught or what the Bible has to offer as footnotes to the Ten Commandments in chapters written by men.
I am not promoting promiscuity, I am stating I've found lack of consistency within the bible (alone) and some religious denominations' interpretation of it holding that men and women should be somehow bound in some certain manner and that bind is violated by premarital sexual conduct.
Dogma is something held as an established opinion. - Orionsbelt77
From Dictionary.reference.com
dawg-muh ;
noun,
plural
1. a system of principles or tenets, as of a church.
2. a specific tenet or doctrine authoritatively laid down, as by a church:
the dogma of the Assumption.[ you should know something about that Orion

]
3. prescribed doctrine: political dogma.
4. a settled or established opinion, belief, or principle.
I believe your definition is at the furthest bottom of those offered for the meaning of 'dogma'. The first and second definitions specifically mention the church, so I believe they are more pertinent to the topic. If we apply these definitions to the modern day examples of Jerry Falwell, Pat Robertson, Ayatollah Khomeneni, and Osama Bin Laden, we realize God's word falling like rain upon man made from the earth making mud out of the original message.
We find the rhetoric and opinion of televangelists, zealots, mullahs and fundamentalists with axes to grind to be further away from personal direct interpretation of scripture then that which is acceptable to rational individuals.