AI is being used as a convenient scapegoat. If a few big tech companies do layoffs, more do because it's a case of monkey see, monkey do.
Acting - as part of "the arts" - is more play than work for the people who do it. That merits not automating it because without enjoyable things to do, we become nothing but consumption machines.
Why should the movie studio executives, board of directors, or shareholders care? To them, it's a business to maximize profit. You can do that if using AI costs less than paying actors.
What if nobody implemented it?
Then Microsoft and Apple among others would be fined per day until they implemented it; or perhaps even being held in contempt of court if the government sued them and won up to and including jail time for executives; or given the current regime, being designated a supply chain risk.
Even if the companies eventually prevail in court, most wouldn't want the hassle or being on the bad side of Orange Man.
There are sites I like and do not block ads because I want them to be around, and in the end they either need to paywall or run ads to stay in business.
But the company whose ad it is has already paid to be shown on the site, hasn't it? Why should they care whether I choose to block ads via my browser? I'm never going to click on any as anyway.
If an LLM regurgitates your code verbatim (or really close so it could reasonably be considered a derivative work) and it's uncredited, then it's copyright infringement and also plagiarism.
It isn't easy being the parent of a six-year-old. However, it's a pretty small price to pay for having somebody around the house who understands computers.