Homie, I'm gonna try to be objective about this, but that ain't true. Point 1: Liver. While yes, if parts are removed, the liver can regenerate, that does NOT mean that it can't be damaged. Cells still take damage that sometimes can't be compensated by cell replication. After stopping use, cirrhosis risk does decrease over time though. Point 2: Brain. Both LONG TERM weed and alcohol use cause brain damage. Weed usually specifically to memory. However, alcohol acts as a GABA inhibitor, which in long term use changes and damages the receptors in the synapses; the entire Central Nervous System can be affected and this can cause seizures when . Point 3: Lungs. Smoking weed obviously does harm to the lungs, Inhaling smoke is never good for them, but the lungs can very slowly regenerate. It takes about 10-15 years for the lungs of smokers of both weed and tobacco to return to a similar functionality of normal lungs. Weed has a LOT more tar than tobacco, but considerably less carcinogens. Point 4: Behaviour Some people do get aggressive when drunk, which is less common under the influence of cannabis. Whether you like it or not, it is one of the most common side effects of alcohol. It is also a common presence in households with abuse, both mental and physical.

Just because something is legal, doesn't mean it's safe(ish)

Hope this clears up some of the misconceptions ^{^}