For some, the belief in a Young Earth seems to be based on a kind of intuition or faith in what they believe an omnipotent God should do. It reasons that if God is all powerful, then certainly He would not have taken millions of years to make the earth.
The age of the Earth is a hotly debated issue among evangelicals. Old Earthers believe, like most scientists, that the universe is billions of years old. Young Earthers measure the age of the universe in terms of thousands of years.
Pluralism is denied logically; inclusivism is denied scripturally, and that leaves us with exclusivism... you have to know that Jesus died and believe in it in order to be saved.
Most relativists believe that relativism is absolutely true and that everyone should be a relativist. Therin lies the self-destructive nature of relativism. The relativist stands on the pinnacle of an absolute truth and wants to relativize everything else.