A few years ago, someone did break a package that many companies cloned and integrated... the internet nearly broke...
My guess; a disruption in services is one thing that’s not already “priced in” to the stock market.
As Neal Stephenson said two decades ago : it's not like Microsoft controls developer's means of production and distribution ! (/s now)
I also realise that some of those people are getting pissed off and annoyed that their contribution isn't being recognised (see TFA for details). And those people have the ability to "inject code that steals secrets" into my code base and cause massive headaches for me.
Which is why I'm extremely careful which dependencies I use, and don't use dependencies whenever possible.
Stop making stuff open source, and there will be more paid jobs, and the paid jobs that exist will be valued more because they are no longer just "plumbing together open source components". Easy as that.
Will the software be higher quality? No. But that does not seem to be a concern anyway.