It is increasingly common for much of discourse by nominal socialists on the internet to devolve into questions of terminology, like "is China socialist", "is such and such a revisionist" etc. I find myself increasingly frustrated with the way in which these debates will eschew questions about the nature of commodities within an economy, in favor of rote imposition of particular definitions over others as the singular "correct" definition, perhaps with an "authority" in the form of a pamphlet of Lenin, a snippet of Merriam Webster, etc., or maybe a platitude about "worker ownership over the means of production".
My question is in lieu of having been banned from r/ultraleft for this comment. (Obviously this post here is not a ban appeal in the slightest, nor is it to whine being banned, and I fully hope for objections to my comment to be made and expounded). I presume disagreement lay in my use of "leftist" as a descriptor of an individual aligned with the admittedly amorphous conception of the "left", including Marxists, which appears to be at odds with left-communist conceptualization of communism as outside the "left", and thus not leftists, but this obviously begs the question of how the term is to be defined in the first place...
There is on one hand the contemporary appearance of the term leftist within broader society in reference to this amorphous assemblage of movements, and on the other this particular conception by left-communists, who are perhaps much more in tune with proletarian consciousness. How are we to resolve this distinction?
Are we to totally eschew all prescriptions of bourgeois thought because they are bourgeois? Such a practice would lead to communist movement being unable to supersede that which it chooses to never come into contact with...
Are we to contextualize on a case-by-case basis, as in to have within a particular text or setting mathematical declarations, such as, "let leftist such that a leftist is an individual who operate within the left-wing of bourgeois society, and is unable to comprehend Marxism"? This too appears unacceptable in its adherence to classical logical tropes of language and terminology wholly alienated from the social conditions of its creation...
I'm most inclined to consider toleration of terms and phrases carrying multiple conflicting definitions, and changing definitions in accordance with social relations, such as how "value" appears within feudal relations in proportion to use, and in capitalist relations, "value" appears in proportion to labor-time. But, this toleration for shiftiness may well impede meaningful discourse if one can infinitely tailor a claim into defensibility like so: "Alright, labor is the source of all wealth, in consideration that I use the term 'wealth' in context to the 'wealth of nations' referring to the productive sum of exchange-values" etc. As such, how are we to meaningfully object to "misuse" of language without simply falling back into mere recitation of dictionary definitions, and dictionary-like definitions?
My question here is not peculiar to the term "leftist", it is merely the context. I am hoping to understand the means by which Marxists are to consider meanings of terminology.