We should have the ability to run any code we want on hardware we own

Much harder to make a secure device that is resistant to getting pwn'd if you can run any code you want. I personally prefer my iPhone to be more secure than to be more open.

Buy a more open phone if you want one, but stop trying to use legal means to force the software on my phone to be worse for my use-case just because you want to have your cake and eat it too.

Once you decide to trade your liberty for security, it becomes the norm and then no one has liberty.

Apple is a company, not a government. I haven't traded my liberty for anything. Again, you can buy a different phone – that is where liberty comes into this equation.

If the USG decides to pass a law saying you can only buy iPhones, then we will have more to talk about w.r.t. liberty.

Nothing actually prevents you from modifying your iPhone however you see fit, btw. If you are incapable of breaking Apple's security without bricking the phone, that's a "you" problem.