People are right that they’d die. They’d die or be irrelevant or so full of security holes that many sites would block them on principle of protecting their users.

The reason why they might die sooner rather than later with the corporate and (western) government led seizure and lock-down of the open internet is that a company like Google could introduce a slew of new web standards and just completely overwhelm any devs trying to carry on the work of keeping the code alive. They could in other words bury it in a couple years with a mountain of complex new standards and possibly regulations (another thing big companies love doing when they capture the regulatory agencies is use them to keep out the little alternatives by burdening them with things they with their money and huge size can easily bear).

But whether that happens or whether even with security incidents it struggles on for 4-5 years the open web is at that point doomed. It’s doomed short of some very large and powerful actor deciding to take up the mantle. Once upon a time the EU might have wanted to do that but all the talk of chat control, all the desire for anti-piracy crackdowns, etc it’s not going to be the EU. If I had to make a guess if there is any chance it’s that China or some massive Chinese company does it. But I wouldn’t count on it. However they’re the only ones with anything to gain at all really who might entirely for their own reasons want to create a browser stack entirely free of the west’s control and might open source huge chunks of it to the point open source devs could do the rest.