Roby, I'm sorry, but as long as you adhere to your false belief about who Cain married, I just cannot take your ........." I believe God has called for me to work against false doctrines of faith/worship...." ........seriously, since you have a false belief yourself.
Let me refer you to this Scripture:
Matthew 7:3-5
3 - And why do you look at the speck in your brother’s eye, but do not consider the plank in your own eye?
4- Or how can you say to your brother, ‘Let me remove the speck from your eye’; and look, a plank is in your own eye?
5 - Hypocrite! First remove the plank from your own eye, and then you will see clearly to remove the speck from your brother’s eye.
IMHO, you need to take a look at your own life and beliefs before trying to "expose" other people.