Jesus told Nicodemus that one must be born again and then told Nicodemus how to be born again so your abridgment of John 3 is faulty since Jesus does introduce how God administers His grace. Romans 9:22 is a rhetorical statement and is only part of what is teaching in Romans 9. As to predestination, those who believe in predestination as taught by Calvin ignore the word "foreknew" in all Scripture they use to try to prove God's irresistible grace.
One reason I will not respond to what you see as contradictions is that you have not read all my posts as I have posted how Trinitarians redefine words like "morfee" (Philippians 2:6) to show that Jesus has two natures with links to show why they are wrong. Also Alpha I do not use John 5 a lot, in fact I have only concentrated on John 5 on this thread because it has been used against me and my Unitarian position, which is why I posted those Scriptures that show Trinitarians do not believe God who sent Jesus into the world. And my position is not contradictory since I am pointing out a fallacy in a doctrine and a religious philosophy not judging those who disagree with me to an eternity in hell, which is what tuppence did on the post you referenced.
And you are lukewarm since you refuse to take a public stance on a doctrine that is clearly false. The Kingdom of God is a theocracy not a democracy where men get to vote on what is and is not true.
Do you remember our discussions (disagreements) on how Christians treat the gay community where you pointed out that unless Christians hammer on Leviticus 18:22, 20:13; Romans 1:26f; 1st Corinthians 6:9; and etc. they are not truly loving their neighbor? If you do then why take umbrage to my pointing out that those who do not believe God and teach the Trinity do not hear the voice of Christ? If you love your neighbor do you sit by and watch them drive off a cliff?