I think you have it backwards. Barrier to entry just went up, why would I use a library when I can ask LLM to make one for me.

It shifts in a way where „left-pad” kind of thing will not happen because no one will need that kind of „library” because LLM will generate it.

I see it as a positive thing, no single schmuck will be terrorizing whole ecosystem when there will be dozens of of different LLMs that can write such code.

More people with shut in because they will be able to create something commercial or their „thing” won’t matter because LLM will be able to replicate their effort in 5 minutes so no one will be willing to pay for that.