If meaning is created by "other sources" - and this is what you agreed to
here- there each source must be an original true source.
Else it isn't a source, but just a medium. Make up your mind.
If an atheist really "gives his own life meaning", then he doesn't only
think that he is the original true source... he
is the original true source. Same for a theist who gives his own life meaning by believing that it is God who gives him meaning, just to mention it.
You keep admitting that... meaning is created by other sources, atheists give their own life meaning... but you fail to draw the logical conclusion from it.
When you make a statement like "an atheis thinks he is the original true source of
meaning", you still see "meaning" as an independent entity: there is "something" and there is one "meaning of something".
But if, as you admitted, meaning can originate from different sources, this is, ehm -
obviously - false. There is "something", and there are as many different "meanings of something" as there are sources.
Exactly. So if you stop existing and ascribing meaning to "life" (which, BTW, necessarily includes your views, opinions and observations of everything else you can see or imagine), there are "others who exist" who ascribe meaning to life.
Nowhere did I ever state or imply that "you" need to be the one and only source of "all" meaning that exists. The sum of "all meaning" (if you could phrase it as such) is created my the sum of "all sources".
All sources create all meaning. God doesn't.
Moving the goalposts. We are talking about where meaning comes from, not where the ability to create meaning comes from.
So we have come from "without God, everything is meaningless" to "even with God, some things are meaningless"
Are there things that are not meaningful?
Do you really think God created meaningless things?
So could God not create meaningless lifes?