The generation is orange
The generations are orange
no
"Our generation is going to be oranges" is what you're going for. Even if the sentence is correct, it still sounds awkward and it could be changed to sound better.
Anyways, I don't understand how a short "how-to" clip meant for a
toddler is supposed to determine whether Generation Z is going to be handicapped.
Gen Y and Z are absolutely fine. We're not being exposed to anything more or less than our parents were back in the 60s, 70s, or 80s.