What if the African Union formed a customs union in the late 1960s?

[Kingpoleon]

Mozambique, Ethiopia, Tanzania, Malawi, Egypt, Morocco, Tunisia, Senegal, Mali, Nigeria, Ghana, Sahrawi Republic, Gambia, Cameroon, Gabon, Guinea, Côte D’Ivoire, Uganda, Liberia, Sierra Leone, Madgascar, Angola, Benin, South Africa, Namibia, Lesotho, Swaziland, Botswana, Rwanda, Mauritania, Togo, Niger, Zimbabwe, Burkina Faso, and Kenya send delegates to Addis Ababa. Thirty-two countries, banded together by increased trade and a joint boycott of Libya, Sudan, Somalia, Chad, CAR, DRC, the Republic of the Congo, Guinea-Bissau, Burundi, Djibouti, and Equatorial Guinea. Eritrea is currently under Ethiopian control(specifically the Ethiopian monarchy’s control), South Sudan has not seceded, and Western Sahara has been freed since 1962.

This African Union agreed to additionally boycott Syria, Saudi Arabia, Yemen, and Oman. Egypt, Ethiopia, Tanzania, Uganda, Kenya, South Africa, Namibia, Lesotho, Botswana, Malawi, Zambia, Liberia, Benin, Ghana, Madagascar, Mali, Nigeria, Senegal, Gambia, Sierra Leone, Burkino Faso, Morocco, Sahrawi Republic, and Tunisia all have a six or above on the Democracy Index in 2006 and today.

What are the effects of an anti-extremist, anti-authoritarian, Pan-African organization?

[True Federalist (진정한 연방 주의자)]

What are the effects of an anti-extremist, anti-authoritarian, Pan-African organization?

Mass confusion for one thing. Portugal retained its colonies into the mid-1970s, Nigeria was in the late 60's fighting to keep Biafra from seceding, and quite a few of those countries were already governed by strongmen.  Also, which Yemen are they boycotting in your fantasy, North Yemen or South Yemen?  This idea of yours is so divorced from reality that it's not even worth considering other than for laughs without a much, much earlier POD that the late-1960s.