Life was hard in the 1870s even in Western countries. A lot of poverty, misery and sickness around. Heck people could die from complications from a cold, no antibiotics. So people were searching for answers and a lot of cults sprang up.
Do we need them now? No! We have answers, we have science, medicine, wonderful food from all over the world, technology that was beyond belief in the nineteenth century. They are anachronistic nonsense, these religions, be done with them.