"I didn't step up for my son and for other people with Down syndrome, and that was devastating for me in that moment," he says. "So I just wanted to right that publicly for myself."
Breaking down in tears, he explains: "Down syndrome is literally one of the most beautiful things that's ever happened to my life."
"It's fun. It's brilliant. It's amazing. It's funny. It's kind. It's loving. It's cuddly," he adds. "They're great teachers, people with Down syndrome. It is not an illness."
Comments on the video are full of support and praise for Scott and his family.
While he says he didn't mean to "get emotional and be an exhibitionist" he writes in his video's caption how important it was for him to express what he felt he should have said at the time.
- nzherald.co.nz