I would like to gather some of my thoughts in closing.
Indeed they are your thoughts, and not the doctrines of the Bible.
James says faith without action is dead.
James is directed toward believers, and teaches those same believers that works are a natural result of genuine faith in Christ. A genuine faith in Christ produces salvation for salvation is by faith and faith alone. James does not contradict Paul who teaches this in Romans 4:1-6
Many here claim that that same dead faith is actually the most important kind of faith a human can ever have, and that is saving faith.
The word dead simply means separated as James shows. When the spirit is separated from the body the body is declared dead. Death is separation. When those claim they have faith but their lives are continuously void of works, then do they really have faith in the first place? Faith is faith. You have either placed faith in Christ or you haven't. If your works are separated from your faith, then perhaps you never put your faith in Christ in the first place, for genuine faith produces works.
I have also been told that people can go through their life and never obey Jesus and it will not interfere with their salvation.
They were no doubt speaking of their Christian life. The thief on the cross had little time to do any works, and so he would fall into that category.
Once a person becomes born again can he be "unborn"? Just a yes or no will do.
They say it will only interfere with their fellowship. However, our fellowship and salvation is connected, and to give the impression that to have your fellowship affected but not overall salvation is irresponsible teaching to say the least.
What you said is irresponsible for it is not what the Bible teaches.
"There is therefore now no condemnation to them that are in Christ Jesus."
"For our lives are hid in Christ."
He has promised: "I give unto you eternal life, you shall never perish."
Was Christ lying. Your statements say that he was. That is irresponsible of you to suggest that Christ was lying. We may lose fellowship but never salvation.
We must believe and obey Jesus every day.
Yes, but not to maintain our salvation. We obey out of love, not duty.