Christian "purpose" and "meaning" in life.

[Esquilax]

Its not an argument from ignorance. You espouse a a materialist view that intentionally denies that physical systems seek desired ends. Then you engage in special pleading that a certain type of physical process, human brain function, can do so.

My statement about proximate vs ultimate meaning stands unrefuted. I made no claim about the relative value of one to the other.

So first you tell me what I think, and then you invent a problem for that thing you've told me that I think, and then you scoff at me for not solving a problem I don't know exists, in a position that I don't necessarily hold, foisted upon me by a person I've never met.

Yep, that sounds like an entirely rational justification for your claims.