Do you see that proviso, at the end of your quote?Calvin says the whole human race.
What say the Calvinist who do not know the scriptures like Calvin ?
Was he wrong and you are right ?
"...there is nothing to hinder him from obtaining reconciliation in Christ, provided that he comes to him by the guidance of faith."
Faith is a gift from God, and not everyone has it.
Phil. 1:29 (Webster) For to you it is given in the behalf of Christ, not only to believe on him, but also to suffer for his sake;
2 Thess. 3:2 (EMTV) and that we may be delivered from evil and wicked men; for not all have faith.