Why does this surprise anyone.
Religions come and go. Their “popularity” has been fickle for hundreds if not thousands of years.
They evolve, merge, take on characteristics of each other, and they are promoted by governments and movements. They are hijacked to support the ideology of the times.
And every one of themselves to be better than the rest. Most of them claim to hold THE best, fastest, way to salvation and everlasting light.
Christianity has had a great run. But, in some places in the world it is waning.
Islam comes and goes (usually as a result of a crusade or two.)
It’s how people work. Agree with it or not...this is the way the world has worked since societies were born.
In the southern parts of the world, the Christian faith is growing.
has had do does did can could shall should will might may and must . . . fastest growing religion