You all make good points. Using a bit of what you all said and combining it, just as Apple gave vouchers for Apple TV for people who purchased a new device, they could have given vouchers for chargers for people getting a new iPhone. The also could've made the new case + small charger case the same dimensions as the old case and given the option to ship together.
Apple pays teams of people to come up with ideas and I'm sure all of our ideas were considered but ultimately rejected simply because the real reason was not to protect the environment but to make a few extra 🤑🤑🤑🤑🤑🤑
If Apple cared about the environment, they would allow aftermarket upgrades to components such as RAM, separate components so that if 1 $10 component dies in a 13 month old Mac without AppleCare that the user doesn't have to decide between a $1500 parts+labor repair job or a $1400 new computer.
When Apple sandbags RAM they're putting in the machines, then charges $200 for basic upgrades, they discourage people from upgrading to what they should have out of the box. Then when they need to upgrade, they're forced to ditch a perfectly functional machine that just lacks RAM for a new machine. That new machine hurts Mother Earth much more than a power adapter, but it massages, Tim Cook's 🤑.
Sadly, just today I finally installed Windows on my Mac. I have a bit of software for work that runs on Mac/Windows but won't work on Catalina. My existing 2015 MBP is long in the tooth and I need to upgrade sooner or later. From the looks of it, all new Macs have Catalina preinstalled and the upcoming Apple Silicon Macs won't run bootcamp. Apple is literally pushing me to Windows and I've been a Mac user since 1992. This sucks and so does Tim Cook.
I think the narrative of Apple caring about the environment is primarily marketing. It's easy to be naive and support their mission statement at the surface level. However, their actions show the hypocrisy of it all. Year after year, they boast about their profits/revenues, and that's really the bottom line. Like you said, they solder on things which makes recycling or replacing components much more difficult. They don't package non-ubiquitous items (like the USB-C adapter), so you will end up buying it from a 3rd party who could arguably be more wasteful than if Apple did it.
With that being said, I will still continue to buy Apple products selectively because even though I think they are a hypocritical company, they have products for me where the pros outweigh the cons.