Does it need a “leader”? It has an unwavering ideology that has been growing like a cancer for a century in the USA. The ideology has fans worldwide.
The leader is, of course, Satan. But, on earth, it is just an amorphous blob made up of people who have vague marching orders and an imagination.
"Come unto me . . ., and I will give you rest for your souls." - Jesus, the Christ
The Progressive ideology only produces unrest, it seems.