HAHAHAHA. So I take it you know bluejeans are designed and manufactured by humans not from the physical evidence, but from some sort of first principles? Please demonstrate your reasoning!
Also, how do you feel about bananas? Is their evident suitability for humans more proof of special creation?
hahaha, this is just too good. Philosophical reasoning for human manufacture of bluejeans! Why let a simple visit to a bluejeans factory decide things when you can invent crazy philosophical reasoning about it!
Of course a visit to the factory in question would confirm the hypothesis. My point was that it is not necessary to visit the factory to be reasonably convinced. What is needed is not "philosophical reasoning" but scientific induction - that is, an understanding of the operation of natural processes such that we can predict both what nature does and does not do. From your mockery it seems you refuse to admit to the existence of factories and engineers unless you have seen them personally. This is not reasonable.
It is the scientifically knowledgeable person who knows with confidence what nature can and cannot do. A scientific illiterate can say with blind faith both "God must have done that" OR "nature did that, no designer was needed" depending on their prejudice. History is full of examples of people wrongly ascribing divine special activity to natual events, but increasingly it is also full of naive and pretentious declarations that nature has achieved something that is quite contrary to scientific laws and principles.