To really destroy the ego would be as useful as destroying the body, intelligence, creativity, language, etc. The ego is a construct we create to navigate and experience this world. Why get rid of it—eve if such a thing could be functionally possible? No, the ego is a magnificent tool. We must learn to use it well. The key, unlike many falsely teach, is not to destroy it, and not even to weaken it.
The key is to make it an efficient, well crafted, strong, and equilibrated tool. To do this, you must not let the ego be the boss of you. It is a part of you and your tool. The ego that ignores the master is unbalanced, afraid, and out of control. Train it well, keep it healthy and strong, and it will be a worthy avatar to your earthly experience.