Frankly, I don't think that's your call to make- but more to the point, I don't think "sin nature" has even been properly defined for the purposes of this discussion. Sin nature means different things to different people and as some have mentioned there is no one definition provided in scripture to which we could all default to in agreement.
What is made clear in scripture is a distinction between two natures. The natural and the spiritual. Some might say between good and evil, or spirit and flesh, or spiritual and physical... these are all examples of the duality that exists between two parts distinctly different, yet inexorably linked-- like heaven and earth, or even God and man with one a reflection or image of the other.
If you can grasp this idea, it might change your perspective entirely.
It is my call to make. It's the call of every holy spirit indwelt Christian to make.
Because I read the Bible and know God is the holy all powerful spirit that created all things.
I don't presume to insist our nature that makes us in need of saving must have been present in the one God sent to save us.
That he was a mere man. And we have to perpetually repent or die unsaved.
I don't make the call that says God lied when he said we have in him eternal salvation that is a free irrevocable gift of his grace.
I don't make the call that insists contrary to what Jesus died to seal for eternity as his new covenant, that he can lose us from his hand. Because we can choose to leave. And as such overcome what God planned before he created the world.
God is sovereign. Blasphemers insist our will overcomes that.
Jude 1:4 For certain people have crept in unnoticed who long ago were designated for this condemnation, ungodly people, who pervert the grace of our God into sensuality and deny our only Master and Lord, Jesus Christ.
Titus 1:2 In hope of eternal life, which God, who never lies, promised before the ages began.
2Timothy 4:3-4
For the time is coming when people will not endure sound teaching, but having itching ears they will accumulate for themselves teachers to suit their own passions, and will turn away from listening to the truth and wander off into myths.
I don't make the call that blasphemes holy spirit by calling Jesus a sin nature human!
It's rather the call upon every Christian to rebuke blasphemers, liars, and trolls.
Not to save their soul because that's not our job.
But to follow also what God said.
Matthew 7