How much clearer does it need to be?
It's perfectly clear. What is being said is that man has no free will. Every thing is carved in stone making this thread and any attempts to convert others absolutely useless.
Why are men called to preach the Gospel? So that those whom God has given ears to hear will hear the truth and believe the truth.
How then shall they call on him in whom they have not believed? and how shall they believe in him of whom they have not heard? and how shall they hear without a preacher? And how shall they preach, except they be sent? as it is written, How beautiful are the feet of them that preach the gospel of peace, and bring glad tidings of good things!" -- Romans 10:13-15 "For whosoever shall call upon the name of the Lord shall be saved.