That we can do things better. When things are done better. I would rather be my wife's sex slave than anyone else's wage slave. If Fiona was all gold and mine I would weep with bitterness. Many Christians find a relationship with the Church more compelling than one with Christ.
Women priests are a Biblical impossibility So also is homosexual marriage.
Grant one and the other might follow. Two perversities for the conservative. However for many that may seem a price Too heavy for the reward. A disturbing discovery is that Nature bullies. Vulcanism and glaciation were hardly man's fault.