There is indeed NOTHING evil about questoining! In my humble opinion, God is pretty tolerant: I figure he's big enough to take me giving him a thorough ticking off every now and then! Oh, that and Christianity isn't about knowledge of facts, it's about faith in God, and without doubting and questioning, you don't have faith: you have knowledge, in which case there would be no hard work, believing in God would be as straightforward as believing in atoms.
By all means, question, argue, I even yell at him when I need to let off steam! Nothing wrong with it, so eat your heart out!
I wouldn't say that your parents are bigoted or anything, we all understand and interpret our faith differently, and they no doubt grew up in the era of fear and awe and submission to God in the form of doing everything straight away, no questions asked. Don't forget, Jesus says we must be like children to enter heaven, and I ask you, have you ever known a child that ISN'T full of questions? They question everything, but at the end of the day they still believe!
Hope I helped1
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...though fire may burn & flames envelop me, I will arise from the ashes...