As I stated, we can justify properly basic beliefs. For example, it's very possible to justify why we should appreciate our parents love and goodness towards us. BUT BUT...we believed in it first in a properly basic manner and a few of us seek justification after.
And your understanding of properly basic beliefs is not in the way people use the term. The way the term is used is not that other beliefs are not required in that belief, it's that it's not justified from inference.
And your understanding of properly basic beliefs is not in the way people use the term. The way the term is used is not that other beliefs are not required in that belief, it's that it's not justified from inference.