Nothing surprising here, nationalism requires isolating the people from external sources of information in order for its debilitating propaganda to succeed.
Small correction: authoritarianism requires using hypernationalism / ultranationalism to isolate people from external sources of information, in order for propaganda and censorship to be effective.
Which is indeed the motive behind so-called "splinternet" efforts, such as this.
Which is indeed the motive behind so-called "splinternet" efforts, such as this.