Read the Holy Qur'an, bro. Muslims don't have monopoly over salvation. The message of the Holy Qur'an is universal, it's for entire humanity. The Qur'an addresses human beings (Humankind) directly more than 300 times, and indirectly more than two thousand times.. "Muslims" have been addressed directly less than fifty times. The Qur'an recognizes the idea of common human origin and ancestry at four different places. "Oneness of human beings" is one of the most important messages of the Qur'an. The Qur'an makes it clear that Allah has made humans into different nations and tribes for the purpose of identification only and that no nation/ethnicity is superior to another .. and that the most honored of humans in the sight of Allah are those who are most righteous. The Qur'an places great emphasis on the dignity of human beings regardless of their gender or race. And the Holy Qur'an strongly advocates justice and equality; absolute equality of mankind ...
Therefore, the message/belief that "Humanity is above all nations, Humanity is above all religion" is perfectly in line with Quranic teachings.