[hunglee2]

We either accept countries are sovereign over tech companies or not.

If tech companies operate with the territory of a country or provide services to citizens in that country, we can expect that they would have to do so under the laws of that land. Those tech companies can choose to withdraw services if they have a problem with doing so. Twitter / FB et al withdrew from the Chinese market (they were not banned by the PRC, as erroneously understood) precisely because they refused to the subject to data requisition laws of this kind from the PRC

[namlem]

Not necessarily. If a company doesn't engage in commerce then it can be based in one country and provide services in other countries regardless of their laws, so long as their home country is willing to resist attempts by other countries to prosecute them.

[rightbyte]

Americans and European should use Chinese chat providers and vice versa. No joking. Small Islandoneasea might be bullied to comply.

Best would obviously be to use some FOSS true E2E encryption app that actually prompt you for accepting keys.