I mean, it is a bit unfair against Apple - some of the reason behind the OS getting more heavyweight is actually backporting new features in 7 year’s distance, many which actually has dedicated hardware in case of the more modern lineup.
Also, there is a big aspect which is independent of Apple: every app is getting more and more heavy, the same phone now has to open a 500MB facebook app, not a 70MB one (just random numbers).
Also, the whole “yearly replacement” thing is just.. not an actual thing. People on average change their phones every 3 years, where the accumulated small improvements do add up. But everyone is at a different point in the cycle, so it absolutely makes sense. Add to it how apple devices hold their value to an insane degree, often living 2nd-3rd lives, and one would be really hard-pressed to actually pinpoint apple as a threat against our planet - compared to cheap androids that are barely good for a single year due to instantly obsolete software, has no resale value whatsoever, and are absolutely single-use.
I am not a proponent of extreme capitalism/libertarianism, but I really have a hard time with a realistic business model that would be significantly better.