Its kind of sad that you can be well-read in philosophy and reference Spinoza and Schopenhauer and still want to force every idea into a choice between theism and atheism. These two categories have more to do with cultural and political battles than they do with philosophy, and I would hope that reading philosophy, people would come to realize that there is a vast range of positions between theism and atheism, and between any two positions that are set against each other in the culture, and that our interest in philosophy would be driven by genuine curiosity, not a desire to bash the other side with what famous philosophers or "Einstein, King of Science" said.