I'm not sure what the song specifically addresses, but it seems like they're talking about one of those people who has that "the world sucks" attitudes, and thinks they don't need anyone's help, when they really do. That's where the "taking the world on by yourself" bit comes in.
The "Just Like You" section is where the people trying to help say "we're not your enemies, we care about you, listen to us, etc." And in the chorus, where it says "his solution is not the only end," they mean everybody that contributes to the "world sucks" belief. That's what all the whispered stuff in the song is.
I'm not sure what the song specifically addresses, but it seems like they're talking about one of those people who has that "the world sucks" attitudes, and thinks they don't need anyone's help, when they really do. That's where the "taking the world on by yourself" bit comes in.
The "Just Like You" section is where the people trying to help say "we're not your enemies, we care about you, listen to us, etc." And in the chorus, where it says "his solution is not the only end," they mean everybody that contributes to the "world sucks" belief. That's what all the whispered stuff in the song is.