"People who study evolution as a science eventually have to put up or shut up. They know that. They may have 'faith' they are or aren't on the right track, but they will need proof eventually."

Your general drift is fine but this little section is shaky. Evolution isn't a science. It's a phenomenon of nature. The theory of evolution by natural selection is the best explanation we have for evolution, arrived at by the scientific method. We put up, but we don't feel the need to shut up, as we are exceptionally willing to take on board new evidence, following which we are only too happy to adjust the theory. No need for faith and no search for proof. It's quite important that we stay on track here, as we need religion finding holes in our logic like we need a hole in the head. As for me, I study evolution and I won't need proof 'til the day I die. The path is beautiful and I don't need an end to it.