I suspect you're being deliberately obtuse and never lived in West Virginia, to boot. Purdue pharma is just a symbol for the damage caused by pharma greed. Here's a starter book to read: Dopesick: Dealers, Doctors and the Drug Company That Addicted America. There are also many others that point the finger at big pharma and how addiction to so-called legal drugs is exploited for profit.
If I read your comments correctly, you're trying to make the argument that "good" parents don't have drug-addicted kids. I don't know of any parent who willingly set out to create an addict. There are many other factors such as peer pressure, risk-taking, disposable funds and physical and mental problems. If you and your kids said no to drug use, kudos. But you're just one positive anecdote in the history of addiction.
I also think you and others are filling in the blanks to Ashley's one-line diary entry to see what you want to see because you hate Biden. There's no backstory to explain the comment in detail. It seems like you're discounting the porn industry as having no effect on behaviour. Pornhub states that the US is its biggest porn consumer in the world.
It's lazy thinking to blame the Biden family's (or any family's) drug problems on the father or mother. Every criticism made on this forum is by posters who hate Biden and want to bring him down, so I take it all with a grain of salt.