It doesn’t on its own, I would agree with that.
What substance abuse does do, in my experience, is amplify already existing negative personality characteristics.
For example, if one is an angry person, then one is likely to be an even angrier drunk.
If one is a stupid person, like myself, then one is likely to be an even stupider drunk.
If one has violent tendencies, then it is very likely that those violent tendencies will be amplified when one is under the influence of a substance. Any substance, including MJ.
The main effect of drugs, from my experience, is to make a person’s mood unpredictable. They can be Dr. Jekyll at one moment and Mr. Hyde the next. Shouldn’t that make this an important consideration in the case?
“If one has violent tendencies, then it is very likely that those violent tendencies will be amplified when one is under the influence of a substance. Any substance,... “
Different drugs have different effects. Your statement is demonstrably false, as it stands.
You're stupid?
BINGO.