As someone who did a far amount of psychedelics decades ago I can state for certain that not all "tripping" is the same, depending on a variety of factors. LSD is completely different than psilocybin which is completely different than peyote. All of these trips are completely different based on your mental state, your surroundings and the size of your dose (among other things). Given the wide array of mental health problems people suffer, I find it absurd to assert that there it is impossible that psychedelics offer no potential treatment for some of these problems. That isn't to say they are a cure-all, are suitable for treating all patients, or all conditions, but it is to say that there has been very promising research done to suggest that some psychedelics do improve some mental health problems. There has been convincing research done on the treatment of PTSD and alcoholism, and research in this field has really only begun to get off the ground.

https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9577917/

https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9710723/