Here is another WHAT IF question that we should consider: What if Arminians are wrong and Calvinists are right? What damage has been done? The only basis for salvation is by grace alone through faith alone in the finished work of Christ alone. What damage does Arminianism do to the above basis for salvation? Arminianism teaches that in order for a person to be saved he must add to the finished work of Christ. Arminianism teaches that the finished work of Christ is not sufficient to save anyone. Arminianism teaches that man must do something(regardless of the Arminian semantics of saying that repentance and faith are not works) - not by the power of God alone as Calvinism teaches - but by his own power(or free choice within the confines of his sinful nature). I submit that Arminianism teaches man to trust in himself and his actions in addition to, and even in place of, the finished work of Christ. Take this test by finishing this sentence - I am saved because... The way you answer that question will say indicate a lot about whether you have already passed from death to life, or not. If you use the word "I" immediately after the word "because" I urge you to examine whether you are truly saved or not. Yes, it matters whether we believe the truth or not. And Arminianism is not true on any of its five points. Blessings.