An honest assessment of the situation, for individuals and in the world as a whole, is that ignorance predominates. Most people may prefer to believe things as opposed to accepting the much less flattering truth that there is a great deal of ignorance to deal with. Theravada buddhists that study and practice the teachings according to the Tipitaka are probably coming to terms, to one extent or another, with the fact that ignorance predominates for them as individuals and in the world at large.
In this context it is not helpful to bettering one's understanding of the nature of the community to approach it by means of polls that are concerned with what Theravada buddhists believe. It completely misses the much more important point which is that we are people and that people are predominantly ignorant. Becoming aware of the ignorance, accepting it and working to overcome it to some extent is what properly concerns people who are actually benefiting from the practice of Theravada buddhism. That doesn't fit neatly into conventional thinking about what religions are more commonly concerned with and I think that is a very good thing about Theravada buddhism.
Personally, I don't 'believe in' anything. It serves no purpose for me to do so.
