We necessarily use reason as an invisible theistic Mind-God. This is understood by only a handful of theists, but it's a death-knell issue for atheism if it's not addressed, and it's not going to go away.
Self-referential, criterial, metaphysical, and philosophy of logic issues are where the debate is headed. Atheists continue to beat the same old drums while the theists are facing every single lingering issue with deeper and deeper research.
The last 50 years has seen a global rejection of atheism's parading of reason as some kind of cognitive crypto-theism. Merely continuing to tread that stagnant water is hardly going to get atheism any street cred, especially when science is so overwhelmingly dominated with political and commercial vested interests.
The real issues with atheism are those that continue to be avoided. Dismissiveness won't make them disappear.
In fact, the New Atheism movement has been a flash in the pan that is now backfiring. They are in the same situation as Japan after attacking Pearl Harbor. At that pivotal moment in history, Admiral Isaroku Yamamoto was said to have remarked, "I fear that all we have done is to awaken a sleeping giant, and fill him with a terrible resolve." Atheism is doomed.
Reason is assumed to be some kind of mind-influencing, mind-defining, mind-obligating unity. Logic is the instrument of definition and justification, and can only itself be assumed. Any defense of logic necessarily proceeds logically to proceed at all, but that defense of logic cannot itself be anything more logically basic than logic itself. So only existential necessity justifies logic and reason, but since this is common to all persuasions, it's not an issue in the God debate between believers and atheists.
Logic is logically basic by definition, which involves the notion of premises being basic to their inferred conclusions. God's mind is ontologically basic but embodies the components of logicality and general reason. But the word basic here is simply logical basicality. The facticity of logic is an ontological notion, but that has nothing to do with justification or the order of knowing. Even ontology itself must proceed according to logical rules of justification and therefore of inferential priority and basicality. God's mind IS the embodiment of logic and general reason. Having no other method or instrument for justification or explanation is at rock bottom precisely what is meant by necessity, both existential and logical. The rationally necessary is necessarily the existentially real. And it's metaphysically basic precisely because of this same principle. The question of metaphysical basicality itself assumes this in its demand for what implies that same basicality.
If logic is logically basic to thought, then by that defining characteristic, it does not itself need a logical foundation, only an existential explanatory foundation to illustrate or clarify its place in the mind's theater of environmental objects. But even that must proceed according to that same logic, since it's necessity is a necessity of thought itself generally.
Logic and reason are not God, of course, but there is no subordination of one characteristic of God's being to any other. They are all co-equal ultimates. Obligation depends on logic for its intelligibility and meaning, while logic depends on obligation for its rules to be followed as a mind-guiding instrument of knowing and communicating. Since this is all used and expressed by preferential choices, goodness ia another ultimate that drives obligation and proceeds in its role as ideal according to logic as well.