No perfect voice has ever existed. There have been some wonderful, brilliant, fantastic, beautiful ones, but every voice has some weaknesses.
Perfect performances are another matter. If a singer reaches an audience and takes them to a beautiful place, I consider that a perfect experience. What is more perfect than giving someone a moving, beautiful moment, a shift of perspective, a forgetting of all cares?
Don’t think of yourself poorly for not being a virtuoso of the larynx. Even though that’s a goal I strive for every day with myself and with my students, it’s not everything. The voice you have right now is full of expressive potential – with music and/or with words and/or with the spontaneous emotions coming through it when you hold a loved one, smell something wonderful, cry out against a hurt, or blurt in a joyous outburst.