IMO, What they're missing is your personal choice to believe what you must: Without the choice there can be no belief. If you don't recognize a reason to believe then that is where God has left you (in their view). Like you say, you can't believe something you don't, and without being convinced of it, you simply cannot believe it.
Their reasoning is obviously not your reasoning. Their simplistic, honest & down to earth open acceptance is to be commended, but that isn't automatically transferred. God has no grand children.
I feel sorry for them. You sound like you're a credit to them. You're a family of very nice people. I think you've reached a point where parental influence isn't going to cut it, and they haven't realized that yet.
Their reasoning is obviously not your reasoning. Their simplistic, honest & down to earth open acceptance is to be commended, but that isn't automatically transferred. God has no grand children.
I feel sorry for them. You sound like you're a credit to them. You're a family of very nice people. I think you've reached a point where parental influence isn't going to cut it, and they haven't realized that yet.