If I Am Driven Out as the Human Emperor, What Does the Righteousness of the Human Race Have to Do with Me?

The protagonist's name is Qin Feng. Due to an accident, he traveled to Blue Star where the world was undergoing changes and everyone was awakened. After that, he became the only fifth-level knight in the world with his extreme talent and ability, and even became the human emperor. However, after becoming the Human Emperor, he felt that the aliens were about to invade Blue Star, so he chose to pay the price and used the artifact "Tian Yuan" to suppress the dimensional passage opened by the aliens, hoping to buy time for his companions to develop. It's a pity that no one can understand his thoughts. When countless people faced the invasion of dragon-level beasts, they did not see the Human Emperor guarding them, and they only felt that they were enjoying themselves in the Human Emperor's palace. In the end, Qin Feng was helplessly exiled under the prayers of more than 80% of the human race...