I don't know that I could tell what the majority of any particular community would assume - many would assume that the child is a blank slate, a new page and not wish to heap any baggage on it.
Really? You don't think that a Christian couple with a newborn that the baby is not considered to be the same religion as it's parents by the parent's friends, family and neighbors as well as the church they belong to?
Again, not as far as I know. A child can have legal dual nationalities depending on the various laws of the birth country and the parent's nationality.
True, it does depend on the various laws of the birth country. In my country (U.S.) a child has dual citizenship until the age of 21, when they must choose because the U.S. does not allow dual citizenship for adults.
As I said, I doubt that either of my father's parents would have, for a moment, considered him to be Russian/British. Or anybody else for that matter.
Okay. Whatever nationality his parents considered him to be would take precedence over an assumption made without knowledge of all pertinent details.
I don't think there is any general rule you can apply to something like nationality.
Why not? I'm only talking about children here, not adults. It's generally assumed that a child has the nationality of his/her parents. Babies with French parents are assumed to be French, babies with German parents are assumed to be German, etc. It may be incorrect in some cases - for example, two Mexican immigrants to the U.S. who have a baby here would consider their baby to be U.S. American rather than Mexican, but I think it's reasonable as a general rule and far more likely to be correct than incorrect.
Even if you were to consider "atheist" a religion, it would make no sense whatsoever to call "Christian/atheist" a religion.
Okay. Call it a religious affiliation or heritage then. Or some other term if you prefer.
But the child might be considered African by the parents. He/she might be considered African by the people in the local community.
As I said above, I'd consider the parents opinion to take precedence over any others. But legally, a child born of two U.S. parents is considered an U.S. citizen no matter where they were born and raised, although it might have dual citizenship with the country of birth depending on the laws there.
Again - no general rule. To me the child is a blank slate.
I think we'll just have to disagree on that. I'm not a big fan of the blank slate hypothesis regarding children. I think a great deal of propensity regarding behaviors and personality is innate.
You keep wavering between claiming that your opinion is 'customary' (according to what custom and why the hell do I have to sign up to it?) on the one hand, and on the other simply your opinion.
You don't have to sign up. You're allowed to have a different opinion and no one can force you to follow any customs you don't like. But if other people tend to make assumptions based on that custom, you can't exactly stop them.
If it is the former, then my argument is that unless I have an opinion about Jesus
Christ it is meaningless to call me a Christian. If this is not the case, then what on earth is it that you think 'being a Christian' means?
That's a thread in and of itself and there have been such threads here before. As near as I can tell, there is no definition of what a Christian must be that you can't find exceptions to. If you feel that makes the term meaningless, well, you aren't the only one with that opinion. Nevertheless, there does not appear to be any core requirement for being a christian that some denomination or other doesn't require.
If it is the latter, I have a second argument: possibly one of the few things you do not have a right to in this world is an opinion on my mental state.
How can someone not have a right to whatever thoughts they hold in their head? What other topics do you feel that individuals have no right to hold an opinion on? Further, how could you possibly stop someone from holding an opinion on your mental state?
I am, even before I can articulate it, the final and ultimate authority on this matter. I may, of course, lie abouty state but you don't seem be claiming this - you're telling me (well, my five year old self) that I'm a Christian whether I like it or not, which makes no more sense than claiming I have blue eyes regardlessmof what colour my eyes actually are.
No. I'm not telling your five year old self anything. I'm telling you as an adult that I would have considered your newborn self a Christian if both of your parents were Christian. If a child is old enough to understand those labels and claim one for himself, I would not deny him the right to do so, not even a five year old. I would, however, assume he was of the same religion as his parents until he informed me otherwise.