Exactly. Kids aren't offended and don't think things are racist until you tell them they should offended and think it's racist. The sooner we can stop manufacturing racism, the sooner it will finally be gone from society. But the cynical side of me thinks that people want there to continue to be racism, so they hop up on their soapboxes whenever they can to call out racism and thus keep it alive.
Not only was in the only menial job in the picture, but it was the only job in the picture. Every other pop is goofing around not working. The funny thing is that if all the other pops were brown, and the "janitor pop" was white, people would find a way to be offended and say "look! the only pop actually working in that picture is white while all the brown ones screw around... racists!!!"