How can a fallen man who is spiritually dead turn to Jesus Christ?
Romans 3
10: As it is written, There is none righteous, no, not one:
11: There is none that understandeth, there is none that seeketh after God.
12: They are all gone out of the way, they are together become unprofitable; there is none that doeth good, no, not one.
You continue to be frightened by biblical understanding. The principles are these: (1) God is Righteous, (2) God is loving.
The answer to your question is: God will provide a way that is both RIGHTEOUS AND LOVING for one who is spiritually dead to turn to Jesus Christ. (God will provide a lamb!)