Tolerance is the last virtue of a depraved society. When an immoral society has blatantly and proudly violated all the commandments, it insists upon one last virtue, tolerance for its immorality. It will not tolerate condemnation of its perversions. It creates a whole new world in which only the intolerant critic of intolerable evil is evil.
Mysteries I read for fun, so I will probably never write one, for fear of spoiling the fun.