Conscientious objector 

The term for a person who refuses to participate in fighting a war due to religious/other beliefs.

An example of conscientious objectors are Quakers, or "Friends" as they are otherwise known, will not fight because of their philosophical beliefs.

Conscientious objector by Ceoliontach March 18, 2011

Objecture 

Combining, objection and conjecture.
Objecture - proverb
is objecting a conclusion or proposition based on incomplete information.

Hank: We are wasting valuable legal resources!
Dale: Objection Conjecture, Objecture.
Hank: That's not a word!

Objecture by ImTheRealK October 11, 2019

rectum injection objector 

Someone who disagrees to anal sex.

My father disaproves of gay marriage, because he is a rectum injection objector.

rectum injection objector by Tiger at Alcovy December 10, 2006

Counter-Objector 

Someone who objects to a Situation or Ideal while applying Logic, Facts, and Evidence to back up their Objections
The "Counter" part usually comes in when the person the Objector is arguing with is usually someone who Objects the same thing, but for a different reason... Usually lacking in reason entirely and just objecting because it's "cool to be different"

Joe is a Counter-Objector because he agrees with Frank that this Political Situation is bad. However, Joe disagrees with Frank on WHY it is bad.

Counter-Objector by ThatOneCorrector November 7, 2018

conscientious objector 

An asexual person, of any gender.

Doctor: Are you sexually active?
Patient: No, I’m not.
Doctor: Strike of bad luck; or are you one of those ‘conscientious objectors?’

conscientious objector by anonymous September 15, 2020