This largely agrees with my own observations- I find that the benefit of knowing about ethical frameworks, societal issues, biases and fallacies ends at being aware of and taking them into consideration, and past that rapidly devolves into justifying increasingly contorted worldviews.

You can see this in any and every ideology-centric group no matter how moral it actually is, from the unequivocally good like feminism, all the way to incels.

The main reason people dig deeper into the underlying theory is motivated cognition, not desire for open-mindedness.