This is all based on the incorrect assumption that they can legislate how software is written, both inside and outside their borders.
But this misunderstands the situation anyway. The overwhelming majority of web clients that interpret CA data are provided by default in devices sold by companies with a clear interest in following the law; because if they don't they can't sell products.
[1] Which I won't engage on, except to say that this seems a lot more like "dumb mistake in the legislation" than "evil plot by an unelected metagovernment" to me. The hyperbole on issues like this gets out of control sometimes, and the EFF seems to be getting worse about it and not better over time. They used to be pretty cerebral.
EDIT: I wrote the above thinking of desktop operating systems. It's much worse on e.g. iOS if the only way to get a browser is through the store, and the store isn't allowed to provide the good browser version in some regions.
At every step those that don’t follow the EU’s rules will get fined by the same apparatus as GDPR violators
And here is the rest of the world and the laws they are passing: https://community.qbix.com/t/the-coming-war-on-end-to-end-en...