The unregenerate is a servant of sin, a slave to sin. Even the regenerate sometimes comes under the captivity of sin and serve it, so its 100 times fold true of the unregenerate. Paul as a regenerated person with a godly nature wrote Rom 7:14-25
14 For we know that the law is spiritual: but I am carnal, sold under sin.
15 For that which I do I allow not: for what I would, that do I not; but what I hate, that do I.
16 If then I do that which I would not, I consent unto the law that it is good.
17 Now then it is no more I that do it, but sin that dwelleth in me.
18 For I know that in me (that is, in my flesh,) dwelleth no good thing: for to will is present with me; but how to perform that which is good I find not.
19 For the good that I would I do not: but the evil which I would not, that I do.
20 Now if I do that I would not, it is no more I that do it, but sin that dwelleth in me.
21 I find then a law, that, when I would do good, evil is present with me.
22 For I delight in the law of God after the inward man:
23 But I see another law in my members, warring against the law of my mind, and bringing me into captivity to the law of sin which is in my members.
24 O wretched man that I am! who shall deliver me from the body of this death?
25 I thank God through Jesus Christ our Lord. So then with the mind I myself serve the law of God; but with the flesh the law of sin.
Now does this sound like he freewill ? He wrote, with the flesh he serves the law of sin. Now thats a spiritual man speaking, so just think if he was only in the flesh as the ones depicted in Rom 8:8
8 So then they that are in the flesh cannot please God.
No, they cannot serve God, or please God in any shape or form, they are sold 100% under the power of sin
