If humanity were cursed by dark magic, it would likely result in widespread chaos, destruction, and suffering. The curse could manifest in various ways, such as causing illness, madness, or bringing about natural disasters. People may turn against each other, driven by fear and desperation, leading to violence and unrest. Dark magic could also corrupt the minds and hearts of individuals, turning them into soulless creatures consumed by a thirst for power and domination. The curse could spread like a plague, infecting entire populations and eroding the very fabric of society. As the curse takes hold, hopelessness and despair would grip humanity, as they struggle to break free from the dark forces that have ensnared them. It would take great courage, strength, and sacrifice to overcome the curse and restore balance and harmony to the world. Yet, the threat of the dark magic would always linger, a constant reminder of the fragility of humanity's existence.