What's the point in marking what I said as BA when you then proceed to more or less entirely ignore the point it's making?
Science is never finished, that much is clear, and so there is always a theoretical possibility that the present consensus will be overturned. We are nowhere near that stage yet when it comes to evolution -- so, in particular, the assertion that "There is design in nature that can only be explained by a designer..." is simply not true. The more accurate assertion, which may well be true in certain cases, is something like:
"There are features of animals and plants that cannot currently be explained within the evolutionary theory."
In such cases there's further work for scientists -- which is as it should be of course! -- either to provide a theoretical explanation, or to uncover more evidence that, partially or completely, resolves these issues. But jumping to a designer is never justified in a scientific approach, because to do so is to emphasise only the gaps in the present theory and to ignore or trample roughshod over the many successes.
It's the same with other branches of science that you consistently dismiss. The incompleteness of a scientific theory is not a reason for dismissing it, nor is it even a weakness; indeed it's a strength that there's always more to be uncovered. The single biggest flaw of IDT is that it is more or less already complete as soon as it's proposed, for the very definition of a Designer that exists beyond the Universe is that it must be forever unknowable, and forever beyond examination.
In short, TheLand, I'm glad to see you asking questions and I hope you continue to do so, but the basic point I was making in my BA is that you are jumping in at the deep end all the time and that is, I fear, causing more harm than good. Why not build up from the basic principles more often? At the end you may still find yourself supporting a Design-based approach than evolutionary ones, but along the way you'll have learned loads about *why* scientists think, and work, the way they do.