“There are many people who have a psychotic break for life with first use.”
You cannot cite a single example of that.
Yes, many. I’ve attended medical research conferences just on this topic. It really started quite a few years ago when synthetic THC became popular.
The same thing happens with Ayahuasca.
I’ve worked with these patients myself, attended psychiatric Grand Rounds at the Med School on this topic.
Just Google the subject. There is plenty of research information out there. It’s not open to debate.
Cannabinoids have been linked to psychotic reactions, such as paranoia, catatonia, dissociation, auditory, and/or visual hallucinations.
Longitudinal studies have reported that consumption of potent cannabinoids quintuples the risk of a psychotic episode.
The psychotomimetic effects are usually transient and resolve within 5 to 8 days; however, up to one-third of patients will transition to schizophrenia.
Certain drugs, particularly cannabis, cocaine, LSD or amphetamines, may trigger symptoms of schizophrenia in people who are susceptible. Using amphetamines or cocaine can lead to psychosis, and can cause a relapse in people recovering from an earlier episode.
Research has shown that teenagers and young adults who use cannabis regularly are more likely to develop schizophrenia in later adulthood.
https://www.nhs.uk/mental-health/conditions/schizophrenia/causes/