"I simply regard evolution as a possible mechanism by which the intelligent design was achieved."
Well said. And an exceedingly fine and beautiful mechanism it is. As a corollary, the Creationists believe God is not omnipotent or omnicient enough to use evolution as a mechanism, but must by their definition create everything magically and without possible rational explanation. That is, we are required to remain ignorant of the mechanisms of creation, else their God would dissolve.
Not necessarily. I would think that any tendency to make that claim arises from the frustration with Darwinists who make the opposite claim, namely that evolution precludes the possibility of a designer, which it in no way does. For every Creationist who claims that the everything was created magically without resort to a knowable process you have an equal number of Darwinists who are uncomfortable or even stridently against the concept that a Designer is involved or even needed. Some Creationists feel that evolution seems to lessen the role of a designer. I don't personally think it does. Because I use screwdrivers and hammers and glue and nails in assembling a house doesn't take away from my claim that I built the house. And if a quadriplegic, incapable of wielding those same tools, observes me using those tools to build my house, it doesn't make him any more capable of utilizing the tools and building my own house. If evolution does turn out to represent a mechanism used in achieving the diversity of species found on earth, knowing that mechanism does not bring me any closer to gaining the ability of designing and implementing such a system myself to create the same result. Knowledge doesn't always confer capability. Conversely, evolution in no way requires nor denies the existence of a designer. Those evolutionists who claim that it does are as unjustified as those creationists who claim the opposite.