can’t find any medical evidence that points to widespread liver damage by opiates and opiates alone. Maybe you’re referring to liver damage caused by acetaminophen that’s included in prescription opiates?

morphine, heroin, meperidine, methadone

These are known to cause Hepatotoxicity in early levels of abuse and significantly more likely to as abuse continues, including risk of heart failure, liver and kidney disease.

I also made a point of not counting overdoses against hard drugs since you can die from alcohol too

I'm not talking about overdoses. If you mean to say that taking enough opium to disrupt liver and kidney function is an overdose than so is taking enough Alcohol to do literally any damage.

You can say everything causes cancer but there’s much more solid evidence linking alcohol to a wide variety of cancers than there is to opiates. The only link I can find is that it may stimulate growth of existing tumors, not directly cause cancer.

The amount of alcohol known to significantly increase your chances of devolving cancer is 4+ drinks a day.

Opioids can increase your chances of developing cancer and increasing the rate of cancer growth at prescription levels.

So you agree addiction can be caused by not abusing drugs?

Yes

this is true of all drugs, including alcohol

No, absolutely not. I can't stress this enough, moderate alcohol consumption is an amount below what causes alcohol dependence.