[luckylion]

You don't necessarily need to rely on the spec, you can get it into law. Like GDPR.

Politicians will not destroy an industry, but they will regulate it. If regulation == destruction, they won't touch it.

[MiddleEndian]

I suppose you could, assuming the law had teeth and was actually enforceable in a meaningful sense.

But in my opinion, the idea that a flag begging companies not to track them would be respected was always a naive fantasy, regardless of whether it was turned on by default (because why wouldn't I want this turned on by default if it worked?).

[danShumway]

GDPR passed without FLoC though.

Do we have evidence that advertisers are going to stop lobbying politicians if FLoC is introduced? Have they promised to do that anywhere?