HI, you are not silly -- nor are you a creationist, if you believe that evolution has and is happening. Creationism holds that all life forms sprang into being in their current form 8 000 years ago.
I agree whole-heartedly that Darwinism deals with the
how, and not the
why. So did Darwin.
We really should leave it at that, however!
EDIT:
H-I and
Mark 12_30 (below) have raised the very good point of my judgemental language in the post in question. I have edited it slightly as a result. They are right: this is not a forum in which we should denigrate the views of others.