Religion doesn't evolve under the influence of secular humanist values and scientific knowledge. It is the foundation of them.
Secular humanism is a repudiation of faith based systems of thought including Christianity. It's a reaction to it, not a child of it.
From
The Affirmations of Humanism - A Statement of Principles
*
We are committed to the application of reason and science to the understanding of the universe and to the solving of human problems.
* We deplore efforts to denigrate human intelligence, to seek to explain the world in supernatural terms, and to look outside nature for salvation.
* We believe that scientific discovery and technology can contribute to the betterment of human life.
* We believe in an open and pluralistic society and that democracy is the best guarantee of protecting human rights from authoritarian elites and repressive majorities.
* We are committed to the principle of the separation of church and state.
Most Christians have not accepted evolution as fact.
These are some major institutions representing much of Christianity, all affirming biological evolution.
CHURCHES ACCEPTING EVOLUTION
[1] Baylor University, the largest Baptist University in the world has stated: "Evolution, a foundational principle of modern biology, is supported by overwhelming scientific evidence and is accepted by the vast majority of scientists. Because it is fundamental to the understanding of modern biology, the faculty in the Biology Department at Baylor University, Waco, TX, teach evolution throughout the biology curriculum. We are in accordance with the American Association for Advancement of Science's statement on evolution. We are a science department, so we do not teach alternative hypotheses or philosophically deduced theories that cannot be tested rigorously."
[2] The Vatican claims Darwin's theory of evolution is compatible with Christianity
http://www.telegraph.co.uk/news/religion/4588289/The-Vatican-claims-Darwins-theory-of-evolution-is-compatible-with-Christianity.html ; Pope John Paul Paul II said, "new scientific knowledge has led us to the conclusion that the theory of evolution is no longer a mere hypothesis."
[3] The United Methodist Church : "THEREFORE BE IT RESOLVED that the General Conference of the United Methodist Church go on record as opposing the introduction of any faith-based theories such as Creationism or Intelligent Design into the science curriculum of our public schools."
United Methodist Church: Evolution and Intelligent Design
[4] The Church of England, 2009:"Charles Darwin: 200 years from your birth, the Church of England owes you an apology for misunderstanding you and, by getting our first reaction wrong, encouraging others to misunderstand you still. We try to practise the old virtues of 'faith seeking understanding' and hope that makes some amends."
[5] In the main atrium in Notre Dame's new Jordan Hall of Science, there is a plaque that reads: "Nothing in biology makes sense except in the light of evolution."
[6] The 214th General Assembly (2002) of the Presbyterian Church, "Reaffirms that there is no contradiction between an evolutionary theory of human origins and the doctrine of God as Creator."
If we evolved then there is no need of Christ.
No argument there.
Science hasn't shown that most of Genesis and Exodus are myth, in fact it hasn't even attempted to do so.
The creation story is the most obvious casualty of modern science, as is the flood myth, the Egyptian captivity, the exodus, and the military invasion and conquest of Jericho or Canaan.
Here's a part of Deuteronomy that science has recently shown to be false:
It’s not surprising that science has (once again) shown something in the Bible to be wrong. But I can’t recall ever seeing a story like this before.
There’s a section in Deuteronomy in which God calls for the complete destruction of the Canaanites (people who lived in a part of the Middle East) by the Israelites. The assumption has long been that those people were indeed annihilated, though skeptics have noted that there’s no non-biblical account of any kind of Canaanite genocide.
Now, a new genetic analysis published in The American Journal of Human Genetics shows that Canaanites didn’t just live. They thrived.
And if many if not most Christians now call the creation story allegory then it's because they are idiots.
I'll let you and them sort that out.