Wesrock:
To simply ask someone to accept “God is love” as a starting premise of an argument begs the question unless one is being quite equivocal or vague with definitions in which case the argument loses all force
Is there something wrong with being vague or equivocal about definitions?
It remains logical. For example, if the first premise is “God is Earth”, a person could disagree with the premise, but it remains merely a definition, so the triplet is still logical (Earth exists, so God exists).
So to me, I see nothing “bad” in the argument. The unencumbered atheist can say “Okay, if God is love, I believe in God. I don’t believe in some entity that created all that is, but I do believe that love exists in all people (creatures, etc). If you say God is love, then I believe in God.”
Is that problematic?