1) ID doesn't assume there is a designer. You must be thinking of creationism. ID states that the world as we know it was created by intelligent design due to empirical data. ID doesn't assume anything about how the intelligent design came to be. Again, it's reasonable to assume an intelligent design implies an intelligent designer, but this is not philosophy, this is science. We can't prove the existence of an Intelligent Designer, we can only surmise that it's a reasonable assumption. But that again has nothing to do with ID as a scientific theory.
2) The whole point of ID is to point out that the empirical data suggests intelligent design. By default that goes against evolutionary theory. ID is older than the evolutionary theory, older than Christianity, please stop confusing ID with Christianity and/or creationism, and/or an intellectual rebuttal of some sort to evolution. ID is a scientific theory that stands on scientific research stating that the universe as we know came to existence via intelligent design.
3) In regards to "I don't know", you would be right if there were multiple options. Unfortunately/fortunately depending on your view of math and logic, there isn't, there's only two choices, randomness and order. Agnosticism is a philosophical luxury not afforded in math.
4) Again, ID doesn't assert everything was designed, in that case ID would be a law, not a theory. ID states that the empirical data strongly suggests intelligent design, while of course randomness is still probable, the probability is so minute it's illogical to consider it as a realistic possibility. For the umpteenth time, it takes more faith to believe against ID, than to believe in it (actually, doesn't take much faith to believe in ID at all
), as impartial science based logicians I would think the majority of the HL forum would appreciate such information, but it seems to be having an opposite effect on the resident "intellectuals"
Last but not least, I highly suggest to anyone who wants to debate to please peruse the first few pages, a lot of these arguments are redundant, have been presented, and have already been refuted. Let's build intelligently