But retros do not have anything to do with causing evolution.
Why don't they? The long tandem repeats (LTR) that flank the retroviral genome can certainly increase gene expression of genes downstream from the LTR. The function of LTR's is to cause the host translational systems to overexpress viral proteins.
Also, a retrovirus may have played a key role in the evolution of placental mammals:
Nature. 2000 Feb 17;403(6771):785-9.
Syncytin is a captive retroviral envelope protein involved in human placental morphogenesis.
Mi S1, Lee X, Li X, Veldman GM, Finnerty H, Racie L, LaVallie E, Tang XY, Edouard P, Howes S, Keith JC Jr, McCoy JM.
Many mammalian viruses have acquired genes from their hosts during their evolution. The rationale for these acquisitions is usually quite clear: the captured genes are subverted to provide a selective advantage to the virus. Here we describe the opposite situation, where a viral gene has been sequestered to serve an important function in the physiology of a mammalian host. This gene, encoding a protein that we have called syncytin, is the envelope gene of a recently identified human endogenous defective retrovirus, HERV-W. We find that the major sites of syncytin expression are placental syncytiotrophoblasts, multinucleated cells that originate from fetal trophoblasts. We show that expression of recombinant syncytin in a wide variety of cell types induces the formation of giant syncytia, and that fusion of a human trophoblastic cell line expressing endogenous syncytin can be inhibited by an anti-syncytin antiserum. Our data indicate that syncytin may mediate placental cytotrophoblast fusion in vivo, and thus may be important in human placental morphogenesis.
http://www.ncbi.nlm.nih.gov/pubmed/10693809
Nonetheless, ERV's provide smoking gun proof that we share a common ancestor with chimps. If you want to argue that Satan fakes evidence, I guess you are free to do so. However, it does make you look a bit silly and dogmatic.
They are used as a neutral marker.
They are used as a marker, regardless of whether they are neutral, beneficial, or detrimental. It is the random nature of retrovirus insertion that makes them a viable marker. It has nothing to do with their function, or possible lack thereof.
I have made it known that I reject the mutation theory. That maybe a sore point for evolutionists because it is all they have to work with right now. They do not have anything to replace that theory with.
Science could care less if you reject mutation theory since you have nothing to back it up with. If differences in DNA do not explain the differences between species, then you need to show what does. I have yet to see you come up with a reason why chimps and humans look different other than differences in DNA.
All Christians accept that we live in a world that is in a fallen state and in need of redemption. At some point people do have to make a choice to be considered a Christian. There is no fence sitting allowed.
Reality has this characteristic of not caring what humans believe.