Error

"Facts about the theory of evolution imply that there are no intrinsic values."

http://atheistethicist.blogspot.ca/2018/01/street-01-starting-over-evolutionary.html 

Evolution is all about quasi-random changes, tested over time by natural selection of the successful changes, as measured through reproduction. Evolution is about reproduction, while ethics is about quality of life. These are not connected, in fact, there is likely an inverse connection.

Anyone raised in the sixties with ethics realized that the world population was an issue, and limited themselves to no or one child. Those without reproduced like rats, which leaves us where we are today. Screwed with Co2, retained heat, and the like. Philosophy has a place, but some of it is just entertainment.

That is not to say that our ethics do not evolve. It is all about values, just not intrinsic values.