Your feedback is received. Granted, I do disagree. This is just one specific area of focus in the broader field of Marxist historiography. So it is niche.

It is as niche as studying a specific subject area in the broader field of Egyptology, which again I don’t think would be a stretch to consider niche.

Perhaps a takeaway we can both agree on is niche may not be the best word for describing what I’m talking about. Perhaps subfield of an academic discipline is.