To me if BMW said "You can buy this car but you're not allowed to drive to to Compton Los Angeles". The answer should not be "If you want to drive to Compton buy some other brand". It should be "Those terms are Illegal"
Unlike Google, Apple claims total dominion over what apps you can run on your iOS device. They have that control over 1.3 billion devices. That the largest amount of censorship control ever in the hands of few people. Political apps are blocked. Sex positive porn apps are blocked. I get that Apple shouldn't be forced to carry those apps on their store but until they provide alternatives I think they're in the wrong.
People generally respond to this they want Apple to censor their apps. That's not an argument for not opening the platform. You are always free to install only Apple approved apps regardless of if the platform is open or not.