Atheism

Personally, I define a cult as either an NRM (The more common use in the 20th century) or a local sect (the more common use in antiquity)

Sure, but that's a fairly narrow definition that ignores a large proportion of the actual dictionary definitions.

I am politically motivated not to consider Christianity a cult, because I believe it makes unjust apology for Christianity

A somewhat subjective take that doesn't really explain how the term cult would imply "unjust apology"

Cults are, politically speaking, groups which have been targeted by the Satanic panic

Not true, by any commonly accepted definition of the word.

edit: the term cults can include groups "targeted by the Satanic panic" but that isn't a strict definitional requirement.

The fact that Christianity is not a cult

Christianity does in fact meet many of the dictionary definitions of the word "cult".

You could argue that the normalisation of christianity excludes it from adhering to the definitions that mention "unorthodox" or "small" but those definitions are relatively few.

and that anti-cult religious leaders have not labelled Christianity a cult, is historically important.

How so ?

Other than power and money i mean.

We can’t go using words in a way that implies Christianity is the victim and confuses the history. I object to calling Christianity a cult precisely because I think ill of Christianity.

I can't find any reference to the word "cult" that, when applied to christianity. would absolve them of the egregious historical shitfuckery perpetrated by and for them.