Have you guys ever eaten Ethiopian food? Eh, that's okay. Neither have they.
Is this just suppose to be a joke?
Yes, but It's okay if you haven't eaten Ethiopian food. The people in Ethiopia don't even have the ability to feed themselves, because they are starving to death.
It think it's unfair to the Ethiopian people to make light of some people that struggle to get food. It will be beneficial to be supportive of them and look for ways that help them out. Try to put yourself in their shoes, I'm sure you would want someone to help you out in that situation.