> In fact I think atheists should make more effort to learn about the vast diversity of other faiths. It's very narrow to be atheist only about the Abrahamic deity.

Your sentence doesn't really make sense, and there is a lot of deities..

> You end up incorporating a lot of Christian thought without realizing because it's so deeply ingrained that it seems like the only option.

Depends on the country, some Northen european countries have a very high proportion of atheists, so it happens probably less there.

> Much of Western thought traces back to serious work by Church theologians.

The problem I have with this is that it's structurally a motte-and-bailey claim. If I have to take it literally, then it's obviously true and it's simply unserious to deny it: the Church does have a pervasive influence on Western civilization. The way it's often rhetorically used, however, is in opposition and to the exclusion of other strands of thought that are equally foundational: the renaissance, the enlightenment, the revolutions of the 17th and 18th centuries, the scientific enterprise, in a smaller but still real way classical antiquity. To the extent it can be said to exist, Western civilization is a patchwork. It is beautiful and I very much like it, but I don't think any one patch gets to have all the credit.

> In fact I think atheists should make more effort to learn about the vast diversity of other faiths

A better version of myself for sure would make that effort. The problem, of course, is that other faiths are just as deep and complicated as "our own", and it would take a lot of time and effort to do so with any level of seriousness.

> Much of Western thought traces back to serious work by Church theologians

Western thought traces back to the Greeks. Aquinas refers to Aristotle as "The Philosopher." Aristotle died over 300 years before Jesus was born.

> The Catholic Church, for all its many faults, retains a serious intellectual tradition.

On Aquinas, the Church Doctor, Bertrand Russell had the following to say:

"Before he begins to philosophize, he already knows the truth; it is declared in the Catholic faith. If he can find apparently rational arguments for some parts of the faith, so much the better; if he cannot, he need only fall back on revelation. The finding of arguments for a conclusion given in advance is not philosophy, but special pleading. I cannot, therefore, feel that he deserves to be put on a level with the best philosophers either of Greece or of modern times."

I don’t think you understand atheism? As an atheist I do not believe in any form of deity or divine authority. I do not reject a specific religion, I do not actually believe there is any form of divine order to our world. I can look at faiths as the social constructs they are, and find interest in concepts humans have been developing and created cults around but there won’t ever be a religion/deity I will look at and somehow start to believe. And religious doctrines do not come for free, they are fundamentally built on top of a belief in a divine truth. My moral values may overlap with some religious people at a given time but we are using incompatible models to analyze our world