Also, citation needed for your claim about MRI/brain activity.
* https://www.niaaa.nih.gov/alcohol-health/overview-alcohol-co...
Sample Citation for the MRI : https://academic.oup.com/schizophreniabulletin/article/40/2/...
And if your next point is "yeah but we know nothing about the long lasting effects after your stop", nature has you covered : https://www.nature.com/articles/npp201744
Also, the liver doesn't "heal better" than the brain. If anything, the problem is that Cirrhosis isn't really detected until too late. I would counter that more things cause brain damage than liver damage.
Finally, the last study you point to references two other studies that found OPPOSITE results in its discussion, so trying to say that is the definitive answer is scientifically disingenuous.
Your data doesn't even help your cause dude. It just shows that further research is needed before going out and making "case closed" proclamations.
Alcohol abuse destroys your brain as well as your liver. It's a substance that creates an actual physical dependence that can kill during withdrawal (something that even heroin doesn't do!).
It's an extremely toxic substance. Not trying to make any statements about pot here, just noting that you seem to be grossly misunderstanding the effects of prolonged alcohol abuse on the human body.
Not even a mention of a source?
The liver can more or less heal itself until it's too late. The brain, not so much.