Every single thing you do involves dopamine. The difference with drugs (of which alcohol is one) is that they directly manipulate your brains neurochemistry. Nothing you perceive with your normal senses does that. Even sex doesn't have the same addictive effects as direct chemical manipulation of the dopaminergic neuronal populations. The idea that they are the same is very dangerous for society and will lead to the use of violence to control people where it is definitely not warranted.