I HATE the way people describe ego broadly in spirituality and psychology. Yes, ego can make you weak and impulsive, overly defensive or too sensitive. But the definition of ego in the first place seems fairly nebulous, and tends to vary largely from person to person.
Ultimately, if you did not have any ego at all, you wouldn't be able to tell where your body ends and another object begins. You wouldn't be able to have any identity of your own, nor an understanding of 'self'. That's not a bad thing, but it would make function in the world basically impossible. When people talk about ego death on psychedelics, very few seem to remember that it isn't like... a permanent state. You don't kill your ego once and suddenly become enlightened eternally. When you stop being high and are no longer lost in the grand energetic flow of all things, you have to return to your body and regain some amount of ego. Maybe it's changed, softened, or you learned an incredibly important lesson. But you have to return to yourself. We don't have to talk about how most who brag about ego death are doing it solely because it feeds their ego.
Point being, ego is useful. It exists for a reason, it is a necessary part of being conscious and functional as an individual. It can be incredibly negative and damaging if you are too terrified of it being wounded or changing. But you need it to exist in some form. You should learn how to release it, adapt it and soothe it, but appreciate it for everything it does to protect you. It is one of the strongest guard dogs for your mind, body and soul. Looking down on ego is not as enlightened as people seem to think.
