TikTok is an unusual case, because the US was determined to ratfuck Chinese social media apps a few years back. The executive orders in question only applied to a handful of companies in one country. There was no concomitant demand for, say, EU companies or anyone else to shard off US users on domestically-hosted infrastructure.
A general data localization requirement in US law would mean an end to self-hosting one website and serving two jurisdictions for the majority of web users.
> There was no concomitant demand for, say, EU companies or anyone else to shard off US users on domestically-hosted infrastructure.
US claims are wider in scope, since they demand services operating in the US to hand over data, wherever it's located, and wherever the users it's about are located.
