This is probably a controversial opinion but I actually use my iPhone because it's locked down with a curated app marketplace and secure payment system. I don't want alternative payment methods or app stores. So I find it distasteful that other companies are seeking to control Apple's product design through the legal system. They're essentially trying to make it impossible to purchase a product I want, which is more…
I could hardly believe you only pay through Apple for everything, I mean everything, as THE trustful, others are not trusted, not using other safe payment methods for some products due to security concerns. Not only Apple is secure in this regard.
As there are opt ins on iPhone for so many highly unsecure matters, you could share the most sensitive data with the individual apps with a flick if you wish (sharing personal and very sensitive data, sometimes personal data of others without their consent, like contacts) it is very hard to understand why this particular opt in is ringing your alarm bells of security irrevocably lost and get locked out completely ("impossible to purchase product") that hard....
You can have your choice of not choosing still, while Apple's product design would otherwise remain intact in its current form. Your arguments are very inconsistent.