Regarding the OP I must say that I am ever so grateful for His grace that made me a five point flaming calvinist! Who knows but that same thing may happen to you at some point, when you come to see our sovereign God as high, holy and lifted up and yourself as a little mud ball without any hope at all until He regenerates your heart and you fall humbly on your face before Him as Isaiah did when he saw Him! What joy filled my heart when I came to see the biblical truth of the doctrines of grace and now I pray for others to have the same reason to rejoice! You will then have no cause to criticise others but will only thank Him for having shown Himself to you clearly! Soli deo gloria!!
Your post also proves the op. Here's a news flash...what you experienced is the same thing I did! Can you believe that...calvinists aren't the only ones to believe that
your post hinted at only calvinists being true believers. I pray it was just the way it was presented and not what you believe.