If you press for elaboration, as you well know, they will admit no one can believe/have faith IN Christ Jesus, unless they are uniquely particularly activated first.
So, while they use the same words to make look like it is in line with scripture it really is not.
What they fail tot grasp is that the soul is a slave to the flesh.
That being born into a fallen body makes the soul depraved by oppression.
The soul minus the flesh is free to think what it wishes to. Be it good, or evil.
Evil, not sin. Sin originates with the flesh. Evil originates with our soul.
Jesus died for sin, not evil!
Salvation grace:
You may want to be a safe driver. "You" is your soul.
Your flesh is your vehicle.
If someone keeps pumping alcohol into your bloodstream? (depravity of the flesh)
Your soul can do nothing to change it, and you will drive recklessly. (total depravity)
Grace is God's power that will sober us up, allowing our soul can make sober choices about God drawing us.
It is by grace with our soul we believe. Not with our depravity.
Our soul can understand that we sin.
It becomes more obvious the older we become.
A main issue issue in salvation is knowing we are a sinner.
Knowing we are a sinner is not a spiritual matter.
It is a natural phenomenon knowable to the natural man.
When it says the natural man can not understand spiritual truths, it does not pertain to our awareness of being a sinner.
Being a sinner is known by all.
Our laws make us painfully aware of sin.
Even everyday laws.
What the natural man finds as foolishness is the Bible teachings designed to feed a born again believer with knowledge
that would benefit his spiritual health and well being.
Those who reject Jesus do so because they had already rejected God drawing them.
If it angers them? Its conviction, and not thinking it is foolishness.
Foolishness is mildly annoying at best. Not something that angers.
On the other hand.... Legalism takes what would normally be fluffed off as foolishness.
It is the legalism that angers them. Not what they see as foolishness.
Some get the two confused for the other.
This can be worked out over time.