Of course you have a choice. If its genetic, then what do people with mixed heritage do? Maybe they slip through the cracks and fall forever... Aaaaahhhhhhh.....!!...

I'm not of the opinion that there's one "correct" belief system. Truth exists, so it can stand forever without the belief of people, and is always there to be discovered. And whatever the truth of spiritual matters is, it can't be exactly as presented - at best it can be orthogonal to what's presented, possibly orthogonal to all traditions.

IMO there's no deep contradiction between the dharmic religions and Christianity. I believe Buddhists when they say that meditation can make you a better Christian. And both the Pentacostals and the Sufis have found a spiritual path in ecstatic dance. Why not be all of these religions? Or take what you need and make your own thing. This will probably trigger some evangelists... I just think the Spirit is knownable to anyone, regardless of whether they've read this or heard that. Its all the spirit.