The primary point of Christianity is not: 1) to teach us how to live in a perfect world, or 2) to teach us how to perfect the world.
The primary point of Christianity is to teach us how to be full of life while living in an imperfect world.
The perfection of the world will happen by people embracing this point, and Christians miss this point when they complain about the world or try to retreat into a closed environment. The fullness of life comes from faith, hope, and love. The Church does not teach faith, hope, and love via doctrines. The Church facilitates a relationship with a loving Father, and these gifts are consequences of that relationship.