It is just here that many make an illogical and improper leap.
Often, as this writer has just done, thinkers will follow closely, and correctly, the Biblical text and teaching, but suddenly, for some unknown reason, jump to a thoroughly un-Biblical conclusion. They then proceed from there to go completely astray in their theological thinking.
Man's will is not free. It is either unregerate and bound by sin, or it is regenerate and the bondage of the sin-bound will is broken. Hence the Bible writer's proclaimation that he is the "slave" of Christ (Romans 1:1; Philippians 1:1).
If the writer would adhere closely to the Biblical text and avoid the pitfalls of such erroneous thinking, he would not confuse himself with a host of other difficulties.
Amen