You can't do this stuff commercially any more.
Western governments are switching to the Chinese model and will expect a back door in absolutely everything.
Whether messaging or social media, the government will simply lock you up for 'enabling', just as they lock up Royal Mail CEOs every time a letter bomb goes off. No, wait...
The core software will have to be a free product released anonymously and widely circulated (on physical media). You may be able to sell products that plug in to its documented architecture to monetise it, with adverts etc, but the state, looking ahead, will expect access to absolutely everything anyone does online. They are using Orwell's 'Nineteen Eighty-Four' as a manual.
As with Brexit, there will always be enough gullible people to join the mob and demand whatever the government want them too. One child with hurt feelings is one too many. Vote now for universal surveillance, censorship and a ban on encryption to end this madness! And they will. It's taken the Empire this long to strike back because there isn't a lot of spare IQ points in government. But they got there in the end.
The same thing happened in the UK in 1737. Walpole's corrupt, incompetent regime were ridiculed nightly on the stage. They brought in state licensing of drama. The censorship lasted until 1968.
Western governments are as good at censorship as the Chinese, but they have to work out how to do it on the sly, so they can continue to pretend to be morally superior to dictatorships.