Here's the problem, a lot of the people (SAG/WGA) trying to prevent the studios from using tech to save money are the same people who told coal miners to "learn to code" when the miners did the same thing.
Personally, I feel like you have to let the market take its course in determining which occupations stay and which go. If there's a need for your occupation, the laws of supply and demand guarantee you'll have a job. If we advance to the point where your job is no longer necessary, well...
But if that's what I believe, then I have to be ok when technology comes for my job. I don't have to be happy about it, but unless I want to be a hypocrite, I've got to acknowledge that the world has just moved on, and I need to find a new niche.
But, again, i could see a viable argument from the other side too. I think what's leaving a bad taste in people's mouth is the fact that a lot of these actors have been vocal about telling blue collar workers to move on, but now that the shoe is on the other foot they want to put the brakes on technology so that they can preserve their own jobs. Smells like bullshit.
Frankly, it's sad when tech or other factors make entire occupations disappear, but it's been happening since time immemorial. When's the last time the ice delivery guy showed up at your house? There was a moment when they developed refrigeration to the point where people could have in home refrigerators, where society could have chosen not to go that route in order to preserve the jobs of ice delivery men. What happened? Well, everyone has a refrigerator and ice delivery guys no longer exist.
Is it right? I don't know, but it's the way it is. I think it's ok to contemplate either way, but don't be a fucking hypocrite.