Russia will block access to Facebook, Twitter and Google unless they register and keep all data on Russian users in Russia.

That policy would make the users safer (perhaps) from NSA spying but more vulnerable to spying by the ex-KGB. For people in Russia, the Russian state is much more of a threat than the American state, so this law oppresses them.

By contrast, the European Union has better data protection law than the US, so requiring European users' data to be kept in Europe is an improvement in their privacy.

However, that improvement will only fully take effect if the EU prevents the US from subpoena'ing user data that subsidiaries of US companies keep in Europe.