Great question. I too have experienced similar thoughts and feelings. I will just share my viewpoint.
I was also angry and resentful towards my parents for raising me as one of Jehovah's Witnesses. What I found was that anger and resentment (a form of anger) are natural feelings, but harmful. Underneath anger lies the root of any issue - fear and anxiety.
Anger tends to come in the guise of a protective friend with airtight logic. That logic however has a very narrow view and prevents us from seeing the whole picture. We have laser like focus on the reasons for our anger and tend to have a blind eye to anything good that may be there. Anger is also a defense mechanism from both physical and emotional harm.
It has been said that he who can forgive anything can understand everything. If you can empathize with your enemy you understand him. Put yourself in your parents shoes. They truly believed in the story the Watchtower has spun and truly believed that what was best for you was to raise you in their belief system. They truly believe you would die at Armageddon and be lost for all eternity. Like most parents - they did the best that they could with what they had.
The hardest part is not the youth we think we lost out on. The hardest part is the shunning we experience and being separated by their fanatical devotion of a publishing company that is about to go belly up. True happiness comes from freedom. We cannot have freedom is we are unwilling to hold on to anger or anxiety.