There's only so many ways you can tell me you care so little about walled gardens that it ranks below about a thousand features that you actually base your purchasing decision on. Let me explain it very, very simply: I and many others actually give a shit about walled gardens, we actually make purchasing decisions based on that by not buying Apple. I personally refuse to buy Apple devices for myself that are incredibly locked down and limited and so intentionally incompatible with every other device on the market; Oh, that describes every single Apple device including the very first iPhones since before Apple became a trillion dollar company by selling a billion iPhones. You and millions of others could have made a similar decision but you didn't, you found about a thousand other things more important.
Over countless choices of countless combinations of thousands of features from companies all vying for more money and attention, consumers have consistently demonstrated that walled gardens are not just a very distant concern that they won't bother paying for, it's often a desirable choice and a top priority amongst many consumers who openly desire features & limitations that are only possible in Apple's locked down walled garden.
I don't think it's helpful to continue this conversation any further. I find your depiction of consumers to be hopelessly out of touch and I think it's kind of pathetic to claim that walled gardens are important yet find a thousand other reasons to ignore it. Every purchasing decision is a trade-off, not everyone gets literally every last thing their heart desires, nor should they because that's a waste of resources. Consumers get what they really want, the market has done well to ensure that, and evidently you've fulfilled your top thousand most desired features in a phone with Apple too.
Calling for the government to step in and override the choices of millions of consumers is the last thing I want, even if it runs contrary to my own consumer choices.