HELP PLEASE

What does Trevor Noah regret not doing or saying in the book Born a Crime?

Explanation:

In the preface, Trevor Noah insists that he has no regret for anything he has done, but plenty of “regret for the things I didn't do.” People should fear regret, not failure and rejection, which are at least answers to the questions regret always leaves open.

the african society basically suffered the consequences of colonization and apartheid directly attacking the black people, first, during the colonialism and its main idea which which "white people" had better rights, affecting   them principally in the right to establish black people in their territories, access to quality education and health services and took away any civil right even to the black people to feel they have the same opportunities as the settlers.