From my own point of view, i believe that before you declare or act your own sexual beliefs, you should think about your environment. We often say that African's are critics but we forget that Africa has it's own culture and societal beliefs which ought to be respected.
Let's also remember the saying 'When you are in Rome, behave like the Romans' because that is the honest truth.
If a community or law is against something for example, doing such would be breaking the law.
Just my honest opinion and I believe that we are all have our opinion.
Your opinion is very valid. Certain things are not accepted in the African society due to their cultural values and beliefs. Hence whoever identifies as Pansexual will always be criticized and considered the black sheep since it is against their culture.