I’m sure when it arrives like other APIs that require certain permissions you will be able to disable it and live in peace.
Indeed. The (collective) you are designing the web around maximum profit to stakeholders. People's interests and preferences don't come in to it.
How did we get from “I think app install prompts should be a thing so the web is on a level playing field with operating systems” to me somehow being responsible for the ills of capitalism?
I literally said you should have an option to opt out and your response was an impassioned speech about “the will of the people”.
I cannot disable these things when Apple has a profit incentive. I haven't been able to make the dumb Game Center thing permanently quit appearing. I guess they don't have a profit incentive, here, huh? So the result is that people who understand how to turn it off, will turn it off. Most everyone else will be trained to hit no instantly. A few people will have hundreds of webapps on their home screens like the browser bars of yore.
For the record; I completely agree that side loading should be possible with minimal barrier and it would be nice if web apps were more discoverable and integrated. But preventing websites from nagging people with a system-level iOS prompt is a feature.