Let me explain it so it is more easily understood:
It (the fall) was not so affected that man, of his own will, cannot seek God, choose God, or even repent. God doesn't command the unsaved to do those things which are impossible for him to do. For example,
Acts 17:30 And the times of this ignorance God winked at; but now commandeth all men every where to repent:
1 Chronicles 16:11 Seek the LORD and his strength, seek his face continually.
Psalms 105:4 Seek the LORD, and his strength: seek his face evermore.
Isaiah 55:6 Seek ye the LORD while he may be found, call ye upon him while he is near:
Scripture does not teach that man cannot freely choose God. (as Calvinism teaches). Man is not a robot, forced to do God's will. This is a Calvinist concept that is not biblical.
The Bible teaches: God has given man a will, for he is made in God's image. He chooses either to receive or reject Christ.
I already went through the first half of this chapter. This verse is written to Christians, about Christians, and never for a moment has the non-elect in mind. (concerning Ephesians 1)
Yes, you are right. That is what make Calvinism so cruel.
(What does?)
The fact that: their sins are all paid for,(according to the non-Cal, and as you mentioned) and yet they are doomed to hell anyway.
Since we believe, the onus is on them to reject or receive the gift of salvation that Christ paid for, this makes God very cruel. Salvation is not an automatic selection of God as to who shall be regenerated and who shall not. (rather "whosoever will")