Both can be dangerous for a human being. If you get addicted to alcohol, your health will be at risk, same like if you get addicted into gambling, your mental, emotional and financial health will also be at risk. As much as possible, alcohol and gambling should be dealt responsibly.
However, it’s undeniable that there is greater disadvantage if you fall into gambling addiction. Not only you will make your life miserable, but you also become a problem to the people around you, and for that you are also making their lives miserable as well.
You are right that gambling and drinking alcohol are equally harmful to people. Both of these harm us physically and financially and have a negative impact on society and family. Being addicted to these two mediums to reduce your wealth leads to inevitable destruction. I think drinking alcohol is more harmful than gambling because drinking alcohol harms you physically and financially. In gambling, you have a higher chance of losing money but at the same time you have a higher chance of winning. Try to control yourself and take patience to prevent gambling addiction.