I can assure you that the Church which Jesus founded is not the harlot of Babylon. Has it occurred to you that Revelation is referring to pagan Rome, which martyred Peter and Paul? Or even Jerusalem, considering Jesus' words, "Jerusalem, Jerusalem, who kills the prophets and stones those who are sent to her!", and the fact that it was responsible for its own persecution of the Way? The harlot gets drunk on the blood of the saints, so whoever it is, it's certainly not the Church which these martyrs belonged to.