That dichotomy leaves no space for non-theistic religions. What if a secular humanist simpathizes with Taoism or Buddhism?
Or non-religious theists, for that matter.
In that case he would have put Taoism or Buddhism into the box instead of secular humanist. But you are right that the question is formed in a way to discourage non-theistic religions from being reported.
That dichotomy leaves no space for non-theistic religions. What if a secular humanist simpathizes with Taoism or Buddhism?
Or non-religious theists, for that matter.
In that case he would have put Taoism or Buddhism into the box instead of secular humanist. But you are right that the question is formed in a way to discourage non-theistic religions from being reported.