This page is provided to answer a specific question, but don't get tied up in detail and forget where you are going. You get past the questions/attacks so you can proclaim the Gospel. It is the proclamation of the Gospel, not argumentation, that transforms minds. See Give Them the Gospel.

Organism-based metrics such as fertility, gene frequencies, or death rates can be quantified as populations generate traits suitable to fill changing environments. What has not been quantified is any "selecting" force or intelligence. Nobody has ever seen a "selection" happen. The word "natural" and "selection in no verifiable way accurately describe observable interactions between an organism and its environment. ~ Dr Guliuzza, How Natural Selection Is Given Credit for Design in Nature, ACTS&FACTS, July, 2011

What Dr. Guliuzza is saying should be very clear. What is called "Natural Selection," that is, equating natural selection with molecules-to-man Evolution has never been observed.  The words do not describe what we can observe.  They are deceitful.  They are unscientific.  They are superstitious.  They imply a sort of magic that has crept into the scientific journals and removed their credibility.  These words discredit honest science because scientists bow to Darwin and worship the god of forces called Natural Selection.  This is Fraud.  This is flimflam.  And many of the perpetrators are scientists too intimidated to blow the whistle on what is going on.  The selection that we do observe is simply an elimination process, not a process by which new kinds of creatures are added.  As with the fossil record, gene research, and everything else that we can observe on this matter, Natural Selection speaks of creation by God not that long ago.

Perhaps this video can make this more clear.