Intelligent design is not the antithesis of evolution. Evolution as long as we have observed it has always taken place within limits. That, too, is something we would expect of intelligent design.
What part of "natural science" do you not understand?
What part of arbitrary and subjective do you not understand? The word "natural" is not a scientific term, but philosophical. What is supernatural about intelligent design when you do it all the time? Are you supernatural and beyond the scope of the so-called natural sciences?
Being intelligible is a specific property? We know how smoke happens, but the smoke is subject to chaotic, unordered conditions.
Speaking of lightning, science still cannot predict where it will strike.
True, but thanks to materialistic science we know it's not from angry gods, and we can to some extent influence where it will strike in an area.
Intelligent design is not the antithesis of evolution.
Intelligent Design is evolution, only saying God did it instead of it happening naturally.
What part of arbitrary and subjective do you not understand?
Science works under rules, and you can call it arbitrary if you want, but those rules have done well for us. Natural science is the study of the natural world, not the supernatural. Religion does belong in another branch of science though -- the social sciences, as religion is a factor in human interaction.
However, there are many historical cases where what was considered supernatural was finally able to be measured and verified, thus becoming in our view natural. So keep working at ID, and if you ever succeed in directly detecting and verifying the "designer," (not just the opinion "it looks designed to me" or "I know in my heart God is real") you may find greater acceptance as science.
You have to -- oh my gosh, what a concept -- compete on the scientific merits of your case instead of acting like a liberal trying to get your views through the back door.