The iPhone, iPad and every other personal electronic device that is purchased by the customer needs to be completely unlocked. I own that phone and what applications and software I put on it is my business, not Apple's. If people want "muh security", then simply don't sideload or use third party app stores. Simple solution. This is ridiculous and I hope the DOJ gets involved and checks these greedy capitalist pigs. If you believe this is in the interest of your security, then I admire your glass half full perspective. I wish I could see things so positively, and I really wish this were truly about security, but it's not. Imagine if you had to use the AppStore on your Macs. People would come unglued. But it's always been this way, so no one realizes how ridiculous it is.
Go get another phone if you don't like it.
The reality for Apple to implement all this additional stuff cost a lot of effort and ends up with more buggy software for the majority of us that just want a reliable, secure phone.