Many conservatives won't believe a cosmologist that the universe is 14 billion years old, a geologist that the earth is 4.5 billion years old,  biologists that humanity is 70,000 years old and evolved from a common ancestor to chimps around 6 million years ago, or climatologists that our industrial age is changing the planet.

However, many liberals won't believe anthropologists that women and men inherently behave differently due to their long history of nurturing-gathering versus hunting-raiding.  The faith is that humans are inherently all equal and that different outcomes indicate a failure of the system and the need for quotas and redistribution.