In my view young-earth creationism is exegetically superior and scientifically viable and coherent. It’s possible, however, to err by overemphasizing the issue in a way that demonizes old-earth proponents and lumps them together with theistic evolutionists. The relative importance of something is extraordinarily important, and understatement can be much more convincing than overstatement. Some well-intentioned people use inflammatory rhetoric that overstates the importance of holding to young-earth creationism, and it needlessly pushes people away from the position.
Contrast how Paul Nelson and John Mark Reynolds, who write the essay for young-earth creationism in Three Views on Creation and Evolution (ed. J. P. Moreland and John Mark Reynolds; Counterpoints; Grand Rapids: Zondervan, 1999), conclude their rejoinder (pp. 100–102, emphasis in original):
It is obvious that a person who is generally committed to a traditional understanding of Christianity can be “old earth.” . . . Our disagreements on these points should not distract from the main topic. Philosophical naturalism is retarding science, philosophy, and theology. It seems to both of us that our reviewers agree in finding such a situation intolerable. To fail to unify with such people of goodwill in the assault on naturalism would not just be foolish; it would be intellectual treason. . . . [Read more…] about Young-Earth and Old-Earth Creationism vs. Naturalism