It’s not just the Greeks, it’s the Romanists, the Liberal Protestants, the Neo-orthodox, the Arminians, etc...
I really don't care about any of them. I do care when you state things about Orthodoxy that are patently wrong because you know nothing of it, and because you don't even undersatnd the terminology.
The only thing that would qualify as "negative" (or apophatic) knowledge in your post is that solitary sentance "The Christian doctrine of God is that he is infinite, eternal and unchangeable."
Inconceivable, immortal, undescribable, incomprehensible, etc. All this is core Orthodoxy.