Im a huge fan of lsd and psychs in general myself. In many cases, psychedelics dissolve one's sense of self, or the ego. So in some sense this could actually be beneficial to incels who are really self conscious about their looks and personal deficiencies, because they no longer perceive themselves as a distinct individual, separate from the rest of the world.
Theres also been a great deal of research out of Johns Hopkins University, NYU, Kings College London, and other institutions indicating that psychedelic-assisted therapy has the potential to treat mental illnesses such as depression, anxiety, and PTSD, which many incels struggle with.