https://www.stopkillinggames.com/faq

Isn't it impractical, if not impossible, to make online-only multiplayer games work without company servers?

Not at all. [...] If a company has designed a game with no thought given towards the possibility of letting users run the game without their support, then yes, this can be a challenging goal to transition to. [...] it could be problematic for some games of today, but there is no reason it needs to be for games of the future.

Isn't what you're asking for impossible due to existing license agreements publishers have with other companies?

For existing video games, it's possible that some being sold cannot have an "end of life" plan as they were created with necessary software that the publisher doesn't have permission to redistribute. [...] For the European Citizens' Initiative in particular, even if passed, its effects would not be retroactive. So while it may not be possible to prevent some existing games from being destroyed, if the law were to change, future games could be designed with "end of life" plans and stop this trend.

... we are talking about the EU initiative in particular, right? I assumed so, mb if that wasn't the case but given Ross' "I just want this to happen" attitude I still believe they're not going for retroactive legislation.