[philipswood]

As a fellow African I struggle to answer the question!

I find it interesting that your (valid to you and a commonly used use case) of "being American" excludes Canada, Mexico, etc. ... (actually all of South America).

There isn't a common culture.

I'm also acutely aware that my definition is extremely unlikely to be shared in North Africa, Central Africa, even in another province of my own country).

All that said "being African" parses with a lot more emotional and ideological content than just geography.

There's a hint of pride at the grandeur and diversity of the landscape and peoples, a dollop of hope for a brighter future given our huge potential (despite our poverty we have so much more stuff than many other countries), there's a dash of injustice of colonial history and exploitation.

When I work with someone from Nigeria or Kenia or I interact with someone who is effectively a refugee from DRC or Zimbabwe - I can honestly say we seem to have something in common with our feeling about Africa.