It is, by definition, a term that's inherently a political reference.
As in, that's literally in the dictionary definition: https://en.oxforddictionaries.com/definition/us/social_justi...
> derogatory, informal
> A person who expresses or promotes socially progressive views.
" calling someone a social justice warrior implies that the accuser thinks the other person is an unreasonable, hostile, and self-interested internet user with a progressive agenda. " -- https://fee.org/articles/how-the-term-social-justice-warrior...
" calling someone a social justice warrior implies that the accuser thinks the other person is an unreasonable, hostile, and self-interested internet user with a progressive agenda. " -- https://fee.org/articles/how-the-term-social-justice-warrior...