Why don't you serve with two hands?
Serving with one hand causes an imbalance in not just your arms but also your legs and stomach muscles. As a right-handed player, serving with only your right arm makes your right shoulder, left leg, and left side of your stomach stronger than your left shoulder, right leg, and right side of your stomach. It also leads to more flexibility in your left hip and side compared to your right. If you don't believe me, try doing a few left-handed practice serves and feel all of the muscles that are undeveloped. You don't even need to swing the racket. Just toss the ball with your right hand and set up for a left-handed swing, and you'll feel all the muscles along the right side of your body that are not as developed as those on your left.
By your logic, this means that you should be serving with a two-handed swing.
In your videos, I see no evidence that your forehand is better than your backhand. In fact, you get more power and spin on your backhand, because you step into it more and have a fuller swing. And in the matches that I've played against people who use two hands on both sides, I've seen very little difference between the their forehands and backhands. If anything, their backhands tend to be slightly better, because they can step into the ball a little better on the backhand side. And from the number of people I've played against who have very good two-handed backhands, I've seen no evidence that they are unable to use their entire body to hit the ball with good control.
BTW, you really need to learn the difference between the words imbalance, disability, and deformity if you're going to keep having these discussions.