And just because there are withdrawals, doesn't mean that it's a physical addiction. Some psychological withdrawals are physical in nature, anxiety can increase cortisol output which leads to the withdrawal symptoms people speak of.

This is not the same as a physical dependency, where a person can become dangerously ill if they don't ween off their substances.

And i for sure use marijuana to keep me in homeostasis.

No you don't, you may use cannabis to self medicate for psychological effects, but you aren't doing it to make sure you don't start vomiting and running a fever.

We need to stop saying psychological withdrawal doesnt have roots based in brain chemistry.

No one is saying that..... That's precisely why a psychologicaly addictive is considered psychological. Physical addictions effect more than just brain chemistry.

I think you are just underestimating the span and severity of psychologicaly addictive substances. Just because it is not physically addictive doesn't mean it's not bad, it just less likely that your body forms a physical dependency on it.