You seem to think “environmentally friendly” means “ENVIRONMENT ABOVE ALL!” If it was environment above all, they wouldn’t be making computers. And, again, if a computer is perfectly capable of performing every day tasks), however a USER has determined that “If it doesn’t get security patches, then I can’t use it,” that is the USER making a decision that a computer, that’s perfectly capable of performing every day tasks, is going to be trashed.
There’s nothing Apple can do as a company to FORCE that user to continue to use the computer.
Well, since YOU are the one so concerned about it, one would think that you KNOW how long you can use a Windows PC as a comparison. I had assumed you didn’t know, which would infer that this isn’t really something that concerns you all that much.