The Basics are so importantThe Basics of what we believe are critically important. If you believe that evolution is true then you cannot have an objective moral standard. Morality would be nothing more than a consensus of society and/or whatever works well enough to keep things harmonious. Within Christianity we not only have doctrinal basics such as the Trinity, the deity of Christ, justification by grace and faith, etc., but we also have the basic presupposition that we are made in the image of God, that we have not evolved, and that we are to carry out the Great Commission of God.
A Christian worldview is the basis for harmony and proper function in the family and society. If you do not hold to a Christian worldview, you will not hold the belief that everyone is created in the image of God and therefore worthy of respect and honor. This would remove racism and prejudice. If you do not hold to a Christian worldview, you most probably would not hold to the position that the life in the womb is human. If everyone did, then killing babies in the womb would stop. With moral relativism marriage would not need to be restricted to a man and a woman, but instead would be open to man to man and woman to woman. Is this healthy for families? If you do not hold to a Christian worldview, then how can truth be absolute since it would not be based upon God's nature and revelation but upon how mankind interprets what he believes to be true...and that changes!
How can society function, mature, and prosper when people are not honored whether in the womb or out, where marriage is not held in sacred esteem, or where truth is a commodity to be exchanged for convenience? Such foundations are not healthy.