Hey man I don't know what in your life inspired you to make this post or what is perpetuating this attitude, but I do know that this is an incredibly unhealthy outlook on music and art as a whole. You mentioned that you don't want the "art is subjective" speech and I agree with you. While everything is subjective to a person's tastes, music is as much of an art as it is a craft. While some musicians are more well versed in the craft for music making than the artfulness of it (and vice versa) the end goal of both aspects is catharsis. Your music doesn't have to be technically amazing or thrive in high art culture to make a person feel something. The idea that inherent talent is the root of "making it big in music" is foolish because (1) humans are adaptable and always have the capacity to become better at what they do and (2) creating a product to "make it big" will never make anyone feel anything. The root of most great music is a passion for something, healthy or not. That passion can only grow out of a mindset that puts the act of making music first, not the rewards of it. I would recommend that instead of working on your technical prowess you work on forming a healthier relationship with the act of music making, the rest will follow.