the biggest issue is streaming.
in the past hollywood would make tv/movie shows, get paid decent, but then make a decent living over the next 20 years as local network TV stations and international TV would play tv shows and movies and earn money from ads and all that money would get paid out to everyone involved. Everyone took their cut of the decent pie and everyone was happy. HBO upended it a little bit in the late 90s by instead charging a sub fee and no ads, but still they'd pull in $2 billion in subs, spend $1 billion on content, pay out another $750m in residuals every time something aired, and keep the tiny bit left over as profit.
netflix completely upended all that. They got $23 billion in 2022 in sub fees (more than double the entire US box office). They spent way more than that on content, but they keep that content FOREVER and they don't pay residuals. Everyone now wants part of that sub revenue, but that would completely break HBO, Disney, Apple TV, Netflix, Paramount+, etc as those businesses built on tech industry bones are built on creating giant content libraries they pay for once and never again, and controlling the spending dial as they need. They don't want to give the stars of Stranger Things a part of the sub revenue in 2035, their logic is "we paid once thats it".
Which has worked for a long time now but as all the ad driven network TV revenue has dried up to nothing, actors and writers are realizing the new paradigm is a shit deal for them but they were so bamboozled by all the netflix, apple, quibi, amazon, etc deals the last few years which dropped big bags of money, ONCE ONLY, that they were too stupid to realize the scorpion they were in bed with was a scorpion.
If the streamers are forced out to pay residuals similar to network TV, which is what the workers want, then they would have to cut back on content by like 90% as right now they use all the sub money to fund new content but now it would have to be split between new content and paying residuals for stuff people watch, and they'd have to share out what gets watched and how much (beyond top 10).