it is set to the motif of a christian hymn in order to mock religion, and present an alternative to it. the idea is for you to sing this song instead of singing your hymns.
those who wish to co-opt the track to promote a vision of neo-liberalism, multiculturalism or globalism are either misunderstanding the track by accident or on purpose, and ultimately twisting the song to promote a vision that the artist would have vehemently rejected.
the song is blatantly anti-religious and blatantly marxist, and was written by an artist that was blatantly iconoclastic and blatantly anti-capitalist. deal with it.
https://www.youtube.com/watch?v=yRhq-yO1KN8