There are number of Nobel Laureates and other great scientists in both the camps defending their respective theories of Evolution and Creation, which means both are just stories, and both suffer from having no eye-witnesses. If either of them were true, all scientists would have accepted it unanimously as they do with rest of the Laws such as Law of Gravity
This is the logical fallacy of inflation of conflict. There is some disagreement in the field of evolutionary biology on certain details, but no disagreement on the fact of evolution. Furthermore you make the mistake of assuming that because someone is a "scientist" they automatically can make an educated decision on the subject of creation vs evolution, but this is simply not the case. A physicist does not necessarily have any more understanding of evolution than a baptist preacher. Interestingly enough there is a paper that was (mis)quoted by a recent awake article that goes into detail on this fact and explains why even educated people fail to understand the fact of evolution - the summary is that it's not intuitive and most people have a tenuous grasp (at best) on the timescales involved. It's an interesting read: http://www.nrcresearchpress.com/doi/pdf/10.1139/g11-046
This does not mean that there is no God. There are two channels for the acquisition of knowledge—1) five senses, 2) intuitive knowledge—something that Einstein admitted that he used in the formulation of his theory of relativity. Now let us use our intuitive mind, along with on our experience:
1) I came through my parents (not from them, because they did not create their sperms and eggs, and also they did nothing in the formation of me within the womb of my mother which happened with no conscious effort from my parents).
2) My parents came through their parents (not from them)…..
I'm not sure just what the point is that you're trying to make here. The argument of "Zebras only come from zebras, lions only come from lions and humans only come from humans" has been thoroughly debunked if you'd care to do a little investigation on the topic of evolution. Evolution of developed species that you're likely to come across in day-to-day life is so incredibly slow that even if your lifespan were 100 times the average for a human it would be barely perceptible at best in most cases. Lions give birth to two slightly different lions and when the populations get separated, they begin to diverge genetically until you have two populations of animals that no longer closely resemble one another and are sufficiently diverged to be considered different species. There's no point in there, though, that you can look at and say "Aha! That's a new species!" Each generation looks sufficiently similar to the previous generation that they appear to be the same species, but over long time spans the similarities diminish.
After that, you seem to go on a completely unrelated tangent. I don't think that many people claim that the fact of evolution is proof that god does not exist simply because humans are the "best" species. Anyone who does make that claim is really lacking in their understanding of logical deduction. In fact, I think that few people truly make the claim that evolution disproves the existence of god. It simply proves that god is not necessary. At least not for the creation of an abundant variety of species that exist today. Other fields of study (cosmology, abiogenesis, astrophysics, etc) further prove that god is not a necessary component for any of our natural world to exist or function, but that's a different discussion altogether.
Your assessment of the function of religion is somewhat noble and certainly compassion is a worthy thing for us to seek. If you agree that JWs have fallen to the point that they are no better than the money changers in the temple that Jesus chased away, what is your assessment of Revelation 18:4? Does it not apply to you, or are you comfortable sharing in their sins and receiving part of their coming plagues?