I don't disagree with science, I speculate about science

I agree about a lot that science claims 

I think that genetic mutations can cause hereditary diseases 

and hereditary injuries 

but I also believe that a lot of hereditary diseases and hereditary injuries are caused by humans that don't have genetically matching dna 

and reproduce with each other 

and I believe that a lot of hereditary diseases and hereditary injuries are in fact biology's devolving efforts to revert humans back to basic traits of less intelligence and a regression towards normal mammalian appearance