First, to all, including Edge and SLP, knock off the personal insults and meta-discussion. They serve no purpose.
Now, to get back to the question, in one case we have strong evidence of design due to a fairly long series of evidence in relation to Stonehenge. In biology though, we haven't even identified what design would look like and how we could test it. So the question is, how is this analogy of any use.
Larry