@Avajs,
There is another, just as compelling, reason to reject atheism as false.
Atheists almost always embrace naturalism. Meaning that they believe that everything that exists can be explained solely by natural causes and laws, without any supernatural influence; that all reality is ultimately physical and that things like consciousness, morality, and reason emerge from material processes rather than from anything beyond nature.
Based on our previous exchanges, it's a pretty safe assumption to say that you are no exception; that you are a whole hearted naturalist and reject the notion of anything super-natural. If so, I invite you to consider the following...
If naturalism is true, then every thought we have is just the result of physical processes, nothing more than chemical reactions in the brain shaped by evolution. But if that’s the case, then our reasoning isn’t based on truth, but rather on just whatever physical causes happen to produce. That includes the belief in naturalism itself.
A belief isn’t valid just because something caused it. It has to be grounded in reason, as you yourself have stated. If all thoughts are determined by prior physical states, then conclusions are not discovered through logic but are merely produced by physical causal forces. That doesn’t just make reasoning unreliable, it destroys the very concept of rational thought altogether. Rationality itself disappears, and with it, any claim that the atheist has to a rational worldview.
If naturalism were true, we would have no reason to trust our own thinking. But we do trust our thinking! We recognize truth. We reason. But reason isn’t just a series of events, it’s a process of recognizing truth, independent of what physical causes may have produced in our brains. If our conclusions are determined by blind forces rather than grounded in actual truth, and there's no basis upon which they can they be accepted as true, which means naturalism itself collapses under its own weight. Naturalism cannot be true, because the very thing we use to evaluate truth, reason itself, could not exist if naturalism were correct.
Naturalism saws off the very branch it sits on. If we can reason at all, we must look beyond nature for an explanation. An explanation that the atheist has no means to even begin to look for because any attempt on their part to look for such an explanation would openly contradict their own worldview.
Now, Avajs, that’s two separate ways I’ve shown you that your worldview collapses completely. How many more will it take before you start to wonder if you’ve made a mistake?"
Clete
P.S. The above argument is my attempt to articulate what C. S. Lewis spent the first five chapters of his book, "Miracles" explaining.
