People being manipulated by giant propaganda networks to hate each other more and more and prevent progress from being made is an age old social _problem_.
E: Removed comment about being a throwaway, appears to just be a new account. Sorry about that.
Social problems are not only culture problems. They are also economic. They are mental health problems. They are education problems. They are industrial (logistical and infrastructural). And so on and so forth.
All things that would be problems even where you have only one culture. For instance, ask the average Japanese about Japan's social problems, from mental health up to and including the nation dying.
I think what you mean is that the cultural dimension is the only dimension you care about. Which is a valid view, but on the internet it won't be the only view. (Which kind of speaks to the issue the subject comic of this post was talking about.)
People being manipulated by giant propaganda networks to hate each other more and more and prevent progress from being made is an age old social _problem_.
E: Removed comment about being a throwaway, appears to just be a new account. Sorry about that.