The argument made is man only can have faith if God gives it to him. That means for the faithless God did not give them the faith God requires for man to be saved. Thus God did not give the faithless what they needed to be saved.
I would not want justice from God for I would be lost, but I would want mercy and fairness (no respect of persons). Who wants to be treated wrongly by God?
Yes. In one sense if God were "fair" all would be lost in God dealing out His judgment and justice. Yet I am dealing with the word "fair" in the sense of being just, unbiased in having no respect of persons and treating no person wrongly. Again if man can only have faith if God gives it to him, yet God commands man to have faith yet will not give it, then that is unfair, unjust and wrong in every sense of the words. Again, who wants to be treated wrongly by God?
I agree. But fairness, justness is part of God's nature and nothing is just, fair about commanding man to believe whereby giving man an impossible command to obey and forcing man to disobey by not giving man the belief God commands/requires of man.
God only does what is good and right (Gen 18:25) and being unfair, being unjust, treating people wrongly is not part of God's nature.
"Yet you say, ‘The way of the Lord is not fair.’ Hear now, O house of Israel, is it not My way which is fair, and your ways which are not fair?" Eze 18:25. There is no unrighteousness with God, Rom 9.
If you had to go to court and be tried over an issue do you want an unfair, biased, rigged court against you where you are certain to lose? No you wouldn't but that is what Calvinism creates.