You're basically implying that it is immoral to have ADHD.

In many ways ADHD isn't so much a disease as an incompatibility with modern office life. It isn't "healthy" for most people to sit in an office all day, but ADHD-like people, it is a very real struggle. One mitigation is distracting a part of your brain with some activity while doing something else. There is nothing at all wrong with this.

You might as well be saying writing with your left hand is unhealthy and recommending exercises to force yourself to write with the "correct" hand.