Comment by jmyeet
There are multiple factors.
For example, the death of optical media has had a massive impact on the entertainment industry, particularly movies. Matt Damon has spoken about this, on Hot Wings of all places [1].
Streaming began as a alternate path for monetizing old content other than cable TV syndication. And it was excelelnt for this in the early years. At that time it was bonus income.
But streaming also ushered in a golden age for watching serialized content so it's a mixed bag.
Loss of writers is just one factor. Filming fewer episodes, moving production out of the US and loss os residuals all contribute to killing this ecosystem.
This doesn't have anything to do with my reply. You're equating what is essentially a play in a warehouse with million dollar per minute productions that have the quality of summer movies.