Funny thing is, L Ron Hubbard set out to create a religion, and he did it! And Jim Jones proved you can get people to do anything. Oh,and Joseph Smith’s Mormonism? It’s so common, it might be easy.
Yes, and each one of the people that you cited had a possible motive to do it (power, money, nutty). Also, they did not provide any evidence to back up their claims (like rising from the dead or other miracles). They don’t really resemble the circumstances of the birth of Christianity, but nice try.
It’s interesting that all 3 of those belief system administrations rely/relied on high levels of secrecy, and with two of them, have/had severe reprisals against those who left or stopped believing.