It never fails to surprise me that so many people neglect to read the actual texts and base their assumptions on articles written by the mainstream media. We live in a time of 'sound bites'.
Can you quote some parts of the encyclical that support your conclusion above?
There is a link to the full text of the encyclical in the above article. It's beautifully written. Read within its context, you will find what you are seeking.
To manage the global economy; to revive economies hit by the crisis; to avoid any deterioration of the present crisis and the greater imbalances that would result; to bring about integral and timely disarmament, food security and peace; to guarantee the protection of the environment and to regulate migration: for all this, there is urgent need of a true world political authority, as my predecessor Blessed John XXIII indicated some years ago.
Such an authority would need to be regulated by law, to observe consistently the principles of subsidiarity and solidarity, to seek to establish the common good,147 and to make a commitment to securing authentic integral human development inspired by the values of charity in truth.
Furthermore, such an authority would need to be universally recognized and to be vested with the effective power to ensure security for all, regard for justice, and respect for rights.148 Obviously it would have to have the authority to ensure compliance with its decisions from all parties, and also with the coordinated measures adopted in various international forums.
Without this, despite the great progress accomplished in various sectors, international law would risk being conditioned by the balance of power among the strongest nations.
It couldn't be more clear that your pope is a fan of globalism and a New World Order (one world gov't)...He wants to disarm the people and falsely thinks peace can be achieved...
And since your pope points out that powerful countries would not be acceptable to rule this world, and of course any leader of a poor country would be disqualified, I'd say your pope is plugging for the Catholic church to fill this role as the Global Leader (charity in truth)...After all, it has the experience in international rule (however lame) and supposedly operates under this 'subsidiarity', so the scene is set...