It's real, and not fully understood. Without it, there would be no field of biology. There is simply too much evidence and it provides too much explanatory power to be wrong. Bacteria rapidly reacting to new, synthetic chemicals (new information), ring species, etc… it lines up too well to the data to be far off target.
The fundamentalist mindset rejects it in several incoherent ways:
Catholics accept it. Mainstream protestants accept it. The only areas that reject it are fundamentalist.
Youtube video of talk I watched coming soon…