We could mandate that any platform beyond a certain (huge) size must provide open interoperability APIs.

Less radically, we can demand that any entity that takes any public money (and of course public entities themselves) avoid communicating solely through closed platforms.

It's insane that the primary public communication channel for e.g. certain UK government institutions and the Norwegian police, was Twitter at one point!

This is more or less the approach that the EU is taking with the DMA. As with most EU regulatory projects, it proceeds, ah, _slowly_ (Twitter isn't yet subject to it, for instance, apparently largely because historically it didn't have a high enough market cap, though the new entity where it's been tacked onto a rocket launch company and a racist LLM presumably now qualifies...)

This is the correct approach. If these American companies want to operate in our countries, and maintain their positions as our primary information channels, then they need to obey laws.

We need open APIs, transparent algorithms, and above all, accountability.