Christianity doesn't offer a smooth flight; it provides a safe landing. The promise of Jesus is not one of happiness, He promises righteousness.
Comparing Jesus with history's greatest of human leaders is like comparing the sun to a flashlight with no batteries.
Vast multitudes of professing Christians fit into the category spoken of here. They call Jesus 'Lord,' but they practice lawlessness. They profess faith in Jesus, but have no regard for the divine law.