Then the church solved that issue by telling people that they could actually get into heaven by paying. People got so pissed off that a sect splintered off, and I think that how we got Protestants.

OP here is referring to the fact that the Catholic church was selling indulgences (basically get out of purgatory free cards), and that is what led Martin Luther to publish the Ninety-five Theses, calling them out on it. This is generally considered to be the starting point for the Protestant Reformation.