Your question is absolutization, absolute absolutization. The conflict between id and ego will definitely lead to maladjustment, but it is not necessarily the essence. Because there are many psychological defense mechanisms to resolve this conflict. Even if it can't be solved, it may just be neurosis or other psychological diseases, and it doesn't have to be okay.
You mean, for example, if you shoot someone, someone will die. You can't recover from the serious injury. He can't dodge. He has to die anyway. You underestimate people's adaptability.
As psychoanalysis, we must look at Freud's dream analysis. Dreams are manifestations of the subconscious mind. I don't fully understand, in other words, I don't understand at all. I hope your luck is better than mine.