I'm getting the feeling that what we are arguing about is not really evolution. No one seems to be arguing for a set creation date and no change thereafter (as was argued in the Medieval period). It seems we'd all agree that species have changed over time. I think what we're really arguing about is natural selection (by random variation) versus guided selection (by God or some other Designer - alien or god-like).
The whole evolution versus creationism debate, in my view, is cultural. As Andres has pointed out, the issue that gets most people fired up about this is what to teach in school. Since the Scopes trial, it has been portrayed as a stark dichotomy between religion and science. As we have noted here in this forum, this is a false distiction. I think what we are arguing about is which epistemology should be primary in our cultures: scientific or religious. In other words, when trying to answer the ultimate question of life the universe and everything, do we use the scientific method (of course we know the answer is 42
) or do we consult the Bible, Koran, Sutras, Zen masters or other spiritual/religious sources?
I, personally, think the two sources can be complementary - especially in one's own personal, individual journey through life. But what is being contested in our culture is which has the authority to define truth, science or Christianity (in the USA anyway - I doubt this is much of an issue in Japan). So, there is a lot at stake, and it's no wonder that sometimes the relative merits of a theory that we know is incomplete have been exaggerated to the point where it has become a secular religion.
For our purposes, then, I would propose that we stop emphasizing the evolution versus creation argument, and start defining our positions along the lines of natural selection versus intelligent design (or whichever theory applies).