Nobody is reasoning it away. Not like you think anyway.No one said it was.
It will matter to the child eventually, yes. They will very likely still have to live through it.
You think my own mother didn't tell me all of this when I came home from primary school crying for being bullied about my name? I promise you, it was little comfort.
And while not every child eille experience what I did, it is not something to reason away like you are by making it about the "good fight".
They're saying that it's something that should be important enough to protect, and I'm sorry that you went through what you did and understand why you're saying what you're saying.
The counter to that is that all people who emigrate should leave their culture behind to avoid their children born afterwards to avoid bullying. That's not a cost worth paying if the alternate is to defend the culture and heritage of others from abuse.
And yes, that's cold comfort at times to a child who is bullied but part of growing up is to learn to understand why culture, and their links to it, even through simple things like their name is absolutely important and worth protection.