Incel can be both a state and a identity. As a state it means it is 100% involuntary, since you aren't making the choice, foids are.
As a identity there is some voluntarism into it, as a incel could reject any foid advances to keep his "belonging" within the "incel tribe". However, there is no such thing as a volcel, every volcel is coping because he is never tempted. And even if a incel is tempted, it is because of his identity (he is a incel so goth foid want to seduce him because reddit) not because of his condition, which is dependant on his true being.