When I was a freshman in college over a decade ago, I was given this link to a youtube video basically asserting that all agnostic people are atheist. At the time I was fairly agnostic, and being told this felt wrong, like my thoughts were being miscategorized, but I didn't have a great way to explain that feeling at the time. The framework above is ultimately how I parsed through that feeling to better understand myself and others. That's why I started thinking about it.

I think a person's belief (or lack thereof) is a reflection of how they think, so adding clarity to what and how one believes or doesn't believe something can grant a better understanding of how they think. And I like understanding other people and how they think.

I don't really understand how this is othering, could you elaborate on that?