Sex is dead without the validation to go with it. Part of the pain of being an incel is not the lack of sexual gratification but the ghastly thought of knowing that women will never look at you with genuine attraction.
Of course, there are lots of otherwise pointless things I'd do if sex were the reward for accomplishing it. This would be the only necessary therapy for any male, to show up on day one and be given physical contact with a female who would act nurturing.
The only reason therapy is useless is because therapy doesn't actually provide you with practical experience. I think a lot of incels would be cured if psychiatrists were able to prescribe prostitutes.