My point in posting this is simply to ask you—what, in your opinion, are the most legitimate criticisms of your own way of thinking?

That's a complicated question in general, because "our own way of thinking" is not a unary thing. We spend a lot of time disagreeing with each other, and we talk about a lot of different things.

But if you specifically mean atheism in its "it is best to reason and behave as though there are no gods, because the alternative hypotheses don't have enough evidence to justify their consideration" formulation, I think the most legitimate objection is that it may turn out to be true that, for some religious traditions -- maybe even for most religious traditions -- being socially and psychologically invested in that tradition gets me more of what I want than not being invested in it, even if the traditions themselves include epistemically unjustifiable states (such as the belief that an entity exists that both created the universe and prefers that I not eat pork) or false claims about the world (as they most likely do, especially if this turns out to be true for religious traditions that disagree with one another about those claims).

I don't know if that's true, but it's plausible, and if it is true it's important. (Not least of which because it demonstrates that those of us who are committed to a non-religious tradition need to do more work at improving the pragmatic value of our social structures.)