Do humans have a sinful nature?

[tonychanyt]

Yes, humans are sinful by nature. Ep 2:

1 You were dead in the trespasses and sins 2 in which you once walked, following the course of this world, following the prince of the power of the air, the spirit that is now at work in the sons of disobedience— 3 among whom we all once lived in the passions of our flesh,

BDAG σάρξ:
② the physical body as functioning entity, body, physical body
ⓒα. In Paul’s thought esp., all parts of the body constitute a totality known as σ‌. or flesh, which is dominated by sin to such a degree that wherever flesh is, all forms of sin are likewise present, and no good thing can live in the σάρξ Ro 7:18

carrying out the desires of the body and the mind, and were by nature children of wrath, like the rest of mankind.

Our physical body affects our mind, and we want to sin. This desire to sin is our sinful nature. This is not the end of the story. There is good news:

4 But God, being rich in mercy, because of the great love with which he loved us, 5 even when we were dead in our trespasses, made us alive together with Christ—by grace you have been saved— 6 and raised us up with him and seated us with him in the heavenly places in Christ Jesus, 7 so that in the coming ages he might show the immeasurable riches of his grace in kindness toward us in Christ Jesus. 8 For by grace you have been saved through faith. And this is not your own doing; it is the gift of God, 9 not a result of works, so that no one may boast. 10 For we are his workmanship, created in Christ Jesus for good works, which God prepared beforehand, that we should walk in them.

God's divine nature dwells in us and helps us to overcome the desire to sin, i.e., to overcome our sinful nature.
Do humans have a sinful nature?
Yes, but for those who are born again, we also have the divine nature.