Partisan fits. https://en.wiktionary.org/wiki/partisan https://en.wiktionary.org/wiki/partisan 1. An adherent to a party or faction. 2. A fervent, sometimes m

Partisan fits. https://en.wiktionary.org/wiki/partisan https://en.wiktionary.org/wiki/partisan 1. An adherent to a party or faction. 2. A fervent, sometimes militant, supporter or proponent of a party, cause, faction, person, or idea. Maybe that word isn't judgemental enough for you, but it fits and I used it carefully.