Personally I'm fine with Google and Amazon doing this. AWS isnt the only web host and you can sideload apps on Android.

Apple on the other hand is a lot more murky due to their lockdown of app installs. I don't believe they should be made to host things they don't agree with but people should not be prevented form installing whatever software they want on their own hardware.

For the record I am a staunch free speech advocate but fully believe that no-one (no-company either) owes you (the royal you) a place to use your free speech on their property.