What's the difference between Africans and Jews? Africans were useful at least.
I think that sounds pretty racist. Please tell me what you mean about African people being useful.
They are not useful because they just eat and complain about everything.
It isn't appropriate to claim that one religious group of people or ethnicity is better than another since that is racist thinking and can lead to discrimination against marginalized people. Neither Jewish people nor black people should be joked about since it leads to either racism or antisemitism. Instead of making jokes that can affect minority groups, why not joke about more non-offensive things so that there isn't any possibility of a group being hurt?