They aren't really religious, but rather habitual.
Spot on! Once it becomes a habit, it is hard to break. You don't even know why you're doing that, it's just something you're used to. When you're aware of it, you began to question, why am I even doing that?
Organized religion is largely a farce and control mechanism, but that doesn't mean that there isn't a spiritual force out there that is helping us and driving things forward, for better or worse.
There's something far greater from us that we don't even understand. Speaking of which, I know that there's a push towards AGI and some argue that it could honestly dispel the concept of God itself. But who knows? It's still up to a lot of debates.
We need a balance in life. I believe evil won't exist without good and good won't exist without evil. It's all there and we get to choose which spectrum we want to be at.