I'm not a legislator, but I'd like to be able to run an app store of my choosing. I'd like to be able to use my general purpose computing device as a general purpose computer, instead of Apple's business connections deciding who I get to do business with. So far as not implementing features, if the bare tech were exposed, I'm sure people would be very happy to implement it outside of Apple. Just because they perpetuate the platform doesn't mean they should control how I use it. As to implementation (i.e. enforcement), that's just whataboutism because the government is more than capable of regulation.