Evolution for christians?

The example many people use of the peppered moth in england is an example of natural selection which is one part of evolution. The christians always want proof of macro evolution which is the change of an animals form into a new species (speciation). Christians always ask scientists to explain how extra chromosomes can appear and how RNA can turn into DNA, when in fact chromosomal changes are well understood and RNA to DNA is one thing that is currently unknown, just as many things in science are unknown. One tiny little inconsistency does not make the theory wrong. Currently, there are thousands of studies supporting micro evolution and recently, which I am very excited about, there has been a new study released that supports macro evolution. This is extraordinary, finally some evidence to support macro evolution, I wonder what the christians will use next to reject evolution once macro gets some more evidentary support?