The term "irrationality" is used to remove a person's agency, to deem them "crazy" without using the more incendiary phrasing. It's venomous.
This gets into the political theory weeds, but rational choice theory is not as simple as "this makes sense". It's more along the lines of "this makes sense to this individual." We all have hierarchies for our rationale that do not necessarily accord with "common sense" or a group mentality. We consciously or subconsciously rank our preferences on multiple spectra and hierarchies to reflect our general beliefs and understandings.
Thus, a Catholic who may espouse pro-choice views. Or an atheist who evokes anti-choice views. No one is beholden to their station, because their beliefs and preferences cohere through a multitude of culminating experiences. I'm a white, straight man who, in defiance of most statistics, supports liberal causes. I work with numerous African-Americans who, despite most statistics, are culturally conservative.
Say it's contradictory; that's fine. Say it's contrarian; that's fine. But "irrational"? May as well call her crazed, with all the baggage the term implies.
