I just proved that I didn’t take them to be synonymous since I literally treated them separately, including in separate sections of the article.
It’s very simple: secularism returns separately to quasi-theistic beliefs (to irrational faith in substitute gods or idols) and to quasi-religious social practices (the self-destructive worship of those false gods). There are, then, two aspects of the ironic incoherence of secularism, the philosophical and the sociological, and I treat them separately in the article.
If you’re done trolling now, I’m sure there are some short articles you can find somewhere.