Complex sentence: The Silfen freed Johansson, who then formed the Guardians of Selfhood to make the Starflyers intentions known to the rest of mankind, though the rest of humanity is skeptic, and views Johansson's Guardians of Selfhood as a mad terrorist organization.
Split into simpler sentences: The Silfen freed Johansson, who then formed the Guardians of Selfhood to make the Starflyers intentions known to the rest of mankind. The rest of humanity remains skeptic, however, and views Johansson's Guardians of Selfhood as a mad terrorist organization.