I looked at it.
Not really talking about the goodness of man.
If man is incapable/totally depraved/totally unable to respond to the truth of Gospel message and scripture and God does not give the person a changed heart first/enables as you assert, as a prerequisite to salvation, then God is responsible for unbelief and I will go one step further Jesus sets up the people for failure.
And he called the people to him and said to them, “Hear and understand:
Matthew 5:10
Can you own the logical result of this interpretation?