Metonymic usages of those words are incompatible with your assertions because it still leaves the terms undefined. You can't use Santa as a placeholder for generosity without giving a definition to the word Santa. Likewise using "God" for goodness is nonsensical unless you give a definition for what "God" is. You can't say "God" is goodness therefor "God" exists because there is goodness, that's pure circular logic. Yes, that is the definition of faith but you used it in the context of disbelief which is the opposite, i.e., skepticism. Which is to say that atheism is not faith based, it's not a belief based on no evidence, it's a lack of belief due to the lack of evidence, i.e., skepticism (as noted before.)