Stereotyping
In this ad, it is stereotyping Japanese people. This was used during WWII when America was at war with Japan and everyone was afraid of what they'd do after pearl harbor. It claims that the Japanese are happy when bad stuff happens to Americans, and that Americans should fear them, because they could be insider terrorists.
Ads like this made people fear anyone who looked like they were from Japan, even if they were a born and raised American. Just because the government of Japan was at war with America, didn't mean that anyone that had Japanese blood hated Americans. The American government went into a panic and made everyone believe in an overarching generalization that anyone who was Japanese was out to get America and that they should all be contained. This ad is evidence of that stereotype.
Ads like this made people fear anyone who looked like they were from Japan, even if they were a born and raised American. Just because the government of Japan was at war with America, didn't mean that anyone that had Japanese blood hated Americans. The American government went into a panic and made everyone believe in an overarching generalization that anyone who was Japanese was out to get America and that they should all be contained. This ad is evidence of that stereotype.
Huggies created this ad to center around the stereotype that dads are nervous around kids and know nothing about them, leaving moms to do the dirty work. They set up a test where they left five dads with their kids for five days with Huggies diapers to see how they would handle them while the moms were on vacation. They called it "The Dad Test."
While it might be true males don't know as much about babies as females, it doesn't mean all dads know nothing about kids. Most dads know how to change diapers, feed their kids, play with them, and keep them happy and healthy. Dads aren't incompetent to raising children. Huggies used the stereotype that its not a realistic feat for dads to take care of their babies, but because they had Huggies diapers, they did just fine. In reality, if the dads were using any other diaper, they would have survived the five days just as well.