The descent of all living things from a common ancestor by means of unguided evolution over millions of years is a fact. It is as certain as the fact that the earth is not flat.
Trying to reason with flat earthers is as difficult as talking to a creationist. Both are convinced of their position in spite of all the evidence.
The vast majority of Christians accept the fact of evolution and find a way to reconcile it with their beliefs. Only JWs, fundies, an Muslims have a problem with it.