Called being neutral - in all terms of the definition.
Neural in terms of teams, law, race, sexual preference etc.
Playing Devils Advocate; If it was accepted to show your support for this, would the equal and opposite be allowed for somone to show their support against?
Had a team 2 years ago who did not want minutes silence on Remembrance Sunday - being neutral I accepted this and got on with it. Even though I did my service and personally found it offensive.
Neutral, impartial, equal.