And so too can religion rally sufficient people to reorder society, and the law, however they see fit. Contrary to the delusions of believers in the Enlightenment faith, there are no rights. Might makes right, and quite frankly - no one is going to bother dying for something as absurd as redefining the word "marriage" contrary to its definition in every single human language on the whole planet.
Many a gadfly has inevitably been swatted.
The downfall of modern society is the illusion of strength that the internet provides. One need merely look at the mass propaganda agitation efforts in Eastern Europe that have been crushed with popular support with relative ease.