I'm not saying that a mom is wrong about everything. And maybe there are some moms who have no regrets and are extremely amazingly excellent as parents and feel proud or satisfied. It may be that some moms have nothing to apologize for.
And....have you ever been a room where people are beating on a table or floor screaming to get out their anger at their parents? It is something. I've been in several of those rooms, but maybe some kids don't have anger at all at their parents.