I don't think that the Online Safety Bill will break encryption worldwide.
It will do so only in the UK. And, if the UK really approves this piece of garbage, it'll end up being an even more isolated pathetic island in the middle of the ocean that nobody should give a fuck about.
From Signal, to WhatsApp, to basically anyone who uses E2EE, there have been countless petitions, letters and calls for action for the UK government since the OSB was first proposed.
Most recently, Signal has brought forward a very compelling (and idiot-proof) argument of why it's mathematically impossible to break E2EE "only if there's the government on the other side of the line".
And, just like everybody else, they have threatened to stop their activities in the UK if the bill gets approved.
If, in spite of the strong arguments and the threats of ceasing operations, the UK still wants to go forward with this abomination, they'll have signed their own sentence to death - and nobody should mourn them.
Sure, there is pushback against E2EE everywhere on the world. And, every time some useful idiot says "we need to do it for the kids!", I feel tempted to punching them in their face until their neurons fall back into the right slots and they can form a coherent thought again.
But *nobody* has so far drafted a bill that explicitly wants to put an end to E2EE by giving the government a permanent backdoor to access anybody's content.
If the UK does it, should we really care?
After all, they are no longer part of the EU, they're not part of any major influential international body, and whatever they do will only impact their own increasingly insignificant piece of land in, the middle of the ocean. Should we really bother to care, or should we just pull out of the country, focus on the reaming 99% of the world that still allows E2EE, and move on with our lives?
https://www.eff.org/deeplinks/2023/07/uk-government-very-close-eroding-encryption-worldwide