Games

Why do people trying to advocate against the movement push the narrative that source code is being asked for or that it is the only solution to make games work after it is sunset?

Just put in an offline mode like was done for Redfall. https://www.ign.com/articles/redfalls-final-update-is-live-bringing-with-it-offline-mode-dlss-3-and-more

Knockout City provided tools for gamers to run their own private servers after it shutdown

https://www.knockoutcity.com/private-server-edition

Suicide Squad Kill the Justice League has servers still running but put in an update to provide offline mode

https://dcgamessupport.wbgames.com/hc/en-us/articles/36119520746515-Suicide-Squad-Kill-the-Justice-League-Offline-Mode-FAQ

And fans have picked up the slack in Hitman with the peacock project when the companies lock certain things to online.

To reimplement the server side part of Hitman to run locally. So that if/when the official servers go down, anyone can still play the game. They've also made it easier/better to mod the game in various ways.

This includes leaderboards, contracts, game progression and unlocks, bonus/event missions, as well as being able to play elusive targets with scoring. All things that are unavailable when you play offline

https://old.reddit.com/r/HiTMAN/comments/12o76t3/what_is_the_purpose_of_peacock_project_mod/

So that's what I'm guessing the movement wants. Just to leave the game in a playable state as opposed to inaccessible when servers go down. And source code wasn't provided for these solutions.

Nothing about the initiative says anything about “requiring devs to develop a form of their game’s source that would be publicly available”. Where did you see that?

The Stop Killing Games’ end goal is that governments will implement legislation to ensure the following:
Games sold must be left in a functional state
Games sold must require no further connection to the publisher or affiliated parties to function
The above also applies to games that have sold microtransactions to customers
The above cannot be superseded by end user license agreements

It's asking for games to remain functional, not for source to become available. Even the Video Games Europe reply linked in the article mentions that the main problem, for them, is "keeping servers online indefinitely":

It appears to be a combination of a requirement to provide online services for as long as a consumer wants them^[It's not that, you fucking douchebags], regardless of price paid, and/or a requirement to provide a very specific form of end-of-life plan where the game is altered to enable private servers to operate^[This is the easy solution and perfectly doable, no matter what bullshit they try to use as an excuse. Don't want to keep your own servers anymore? Release the files needed to run private servers, update files so any game can connect to any private server, done.]. We do not believe these are proportionate demands.

This campaign is not asking to take away IP from devs or publishers, they would still retain it.

Legally speaking, a game sold for a single payment and without clear stipulation of an end of service would be considered a Good under EU law. Tjis means you're purchasing a perpetual license to your specific copy of the game, but not to the IP or copyright.

Ross, the creator of the SKG campaign, goes into extreme detail on this very topic of goods vs services, and how the game industry is committing fraud by destroying a customer's ability to access the content their perpetual license allows.

It sounds like you're asking genuinely. Ross' interest is in games, hence that's the area he started it in. He's already stretched to his limit co-ordinating this limited campaign. He also advised to keep the scope limited so that the opposition to it will be mostly from games companies (Nintendo, Sony, Ubisoft, EA etc.) Than from movie companies (Paramount, Disney, Warner Bros. etc.) who will be also pushing as hard, using a lot of lobby money and a whole web of arguments from different fronts, that will be more difficult to deconstruct and rebut.

For other audio and visual content, there are often "analog loopholes" that can preserve media even if in a slightly degraded form no matter how many layers of DRM you put. Games do not have a standard method to do that, so access is unilaterally and permanently taken away without a way for it to have been preserved.

So, I have no idea how purchasing a show or movie (to own) digitally works, but I would think that at least you wouldn't have to worry about a server being taken down and not being able to access the movie, and I'm 100% certain that it's not a problem when you have a physical disk. The thing is, most media isn't being watched this way. It's watched on Netflix or any other streaming service where you aren't actually paying for a movie itself, which is why it's okay for them to delist it and you not be able to watch it anymore.

The reason that Stop Killing Games is happening is because people own a disk of The Crew and are physically unable to play the game now

Any successful first step is a first step. Hopefully this should lead to more sensible things.

Other media should. But getting it to happen on games is a good first step considering games are the MOST profitable form of media.