The original joke is that someone asks the Asian guy if he likes some stereotypical Asian foods (I forget, like ramen or moon cake).

The Asian dude says that same line about how his people are insulted but he does actually like the food. It's a pretty funny bit actually.

This meme is just swapping the Asian for German but it keeps the 2nd half of the meme, about the comedian's race, the same. You're right, German is not a race.