For at least the last hundred years, the world's most dynamic religion has been neither Christianity nor Islam.(full story at investors.com)
It is leftism.
Most people do not recognize what is probably the single most important fact of modern life. One reason is that leftism is overwhelmingly secular (more than merely secular: it is inherently opposed to all traditional religions), and therefore people do not regard it as a religion.
Another is that leftism so convincingly portrays itself as solely the product of reason, intellect and science that it has not been seen as the dogma-based ideology that it is. Therefore, the vast majority of the people who affirm leftist beliefs think of their views as the only way to properly think about life.
That, in turn, explains why anyone who opposes leftism is labeled anti-intellectual, anti-progress, anti-science, anti-minority and anti-reason (among many other pejorative epithets): Leftists truly believe that there is no other way to think.
How successful has leftism been?
It dominates the thinking of Europe, much of Latin America, Canada and Asia, as well as the thinking of the political and intellectual elites of most of the world. Outside of the Muslim world, it is virtually the only way in which news is reported and virtually the only way in which young people are educated from elementary school through university.
Only the United States, of all Western countries, has resisted leftism. But that resistance is fading as increasing numbers of Americans abandon traditional Judeo-Christian religions, lead secular lives, are educated by teachers whose views are almost uniformly left-wing and are exposed on a daily basis virtually exclusively to leftist views in their news and entertainment media.
Leftism Is #1
Dogma-based ideology is the world's most dynamic religion