I'm afraid this isn't the win you think it is.
One of two things will happen in the near future:
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Nearly everything you do online from banking to shopping to social media (including online gaming) to paying your electric or internet bill to yes porn will require OS-level attestation to access and use the site. Linux lacking this will become an incredibly private OS that is useless for anything online making this a defeat for Linux having any hopes of real desktop market share and/or forcing it to comply. Microsoft, Apple, Google would love to push Linux as an OS option off the table.
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Kids will start using liveboot or installing Linux and evading these controls, Christian fascists, tech overlord capitalists, and the government will take notice and write a bill to close this "loophole" and within a few years having already established the idea in the popular conception that age verification is okay will face lesser resistance in quickly ramming it through.