What Apple is doing with its secret battery “calibration” tool is evil, because only Apple (and a few licensed shops like Best Buy) can use it, but at least you can still change the battery and ignore the message that the battery needs “service.”
The really evil things that Apple is doing is making it impossible to obtain OEM parts, mandating that recyclers destroy the machines so that parts can’t be reused, abusing intellectual property laws to ban the importation of refurbished Apple parts, creating software updates that stop replaced Home buttons or replaced screens from working, and designing special chips like the T2, which makes it impossible to replace certain components on the motherboard.
It is worth watching Louis Rossmann’s video about Apple’s war on 3rd party repair: