It's not a different discussion, it's the same discussion, you just can't abide to be wrong, so you look for any feeble excuse to rule out anything that proves you wrong, don't you?
That quote actually contains an answer to the question you just raised:
A cleric typically chooses the domain, but a non-typical cleric could have a domain thrust upon them. See Jonah: chosen by god, given powers by god, but doesn't want them and tries to run away.
Here. Let me help you out since you're having trouble. I said,
"From Xanathar's Guide to Everything, Page 18:
"The typical cleric is an ordained servant of a particular god
and chooses a divine domain associated with that diety."
Not the player picks the domain. The Cleric chooses the domain. Domain is clearly an in-fiction thing. "
Had you answered with your response above, it would have actually made sense conversationally.
However, Aldarc responded with,
""Also, ruminating on this further, does this mean that the deity has no say in the domain of the cleric, since the wording indicates that the cleric is the actual agent for selecting the domain and not the deity?"
Thereby limiting this portion of the discussion to clerics with deities. At which point I responded with,
"It also says that the cleric chooses from the domains offered by the deity, so the deity would have say. Deity says, you can pick from X, Y and Z. "
Dealing with clerics with deities as appropriate.
Your response to me regarding the current tangent was completely inappropriate. If you want to have this discussion, you need to quote, you know, the ACTUAL post you are responding to. Do that and I will talk to you about it.