Poor guy, that sounds like so many people I know
Personally my faith has remained strong for my whole life. This is partly because I am very stubborn and partly because I have a very personal relationship with God. I have no idea where it came from (we used to only go to church a few weeks out of the year and worship at home was usually by my own instigation). Organized religion was never a big part of it for me. I have my own Bible and Book of Common Prayer and I really only go to Church so I can sing. A few years ago I had a really hard time in my life where it felt like everything and everyone had been taken away from me and all that was left was God. I know many people react to this sort of thing by blaming and hating God but instead it made me appreciate Him all the more, because no one could ever take Him away.
(I'm going to use the word "sin" in this next paragraph; please don't picture fire and brimstone and bible-toting maniacs. I use it to mean "a bad thing to do which hurts people and makes God sad.")
I feel really sad when people lose their faith or relationship with God as a result of religious persecution. This kind of forced religion is a horrible sin because it destroys faith. The fact that a person (or many people) forced you to practice a faith you didn't want is not evidence that God is evil, or non-existant; it is evidence of human failing. God is not responsible for the evil and sin in this world. We do it ourselves because we have free will. For example, just because we kill in God's name does NOT mean God wants us to kill, nor does it make us right.
Even more importantly is this: we are not in Heaven. As my Greek professor likes to say, "Life's a bitch and then you die." This world is meant to be nasty, and full of pitfalls, and lots of people (by which I mean everyone) are going to make hideous mistakes. The worst one, because it is the most insidious, is to think you are right when you are wrong. No one can deny that they have been wrong before, but before they knew they were wrong, they made a mistake. My doctor once gave me the wrong antibiotic and my infection only worsened. Similarly, your parents once thought God required them to send you to yeshiva and Israel to make you a good Jew, but instead it destroyed your faith in the Jewish religion.
I feel really sad on your behalf and I hope I haven't offended you at all while I was trying to comfort you; I know my idea of comfort often just replaces one dilemma with another.
Good luck on your ongoing journey!