maybe get a lanyard to reduce the snatch risk.

If you have an apple device, I believe you can lock the phone remotely via the “find my” app on another device or through Apple’s website. Not sure about Android.

Free Speech isn’t dependent on a “platform” - you are free to talk to people, publish a newsletter, stand on a street corner with a sign, put up a website, etc.

The idea that “platforms” need to amplify and broadcast whatever you “post” or else you don’t have free speech is asinine - you have no right to force others to disseminate or repeat your message.