Nobody wanna see us together
But it don't matter no
'Cause I got you babe
'Cause we gon' fight
Oh yes we gon' fight
Believe we gon' fight
We gonna fight
Fight for our right to love yeah
"Nobody"? I don't particularly care one way or another about who he's with. Presumably, he hasn't considered my opinion, instead meaning nobody he knows wants to see them together. But he's gon' fight for their right to love, yeah. A noble-sounding, Romeo-and-Juliet sentiment, and I bet all the high schoolers with persecution complexes of their own are totally feeling it.
In real life, it's hard to be objective about the girl you love, or more accurately, the girl you desperately want the right to love. If all of your friends have problems with your relationship, maybe you need to step back and consider just what it is they object to.
Deep down, Akon knows they have a point. He freely admits in one of the verses that the girl "got every right to wanna leave" because he's been acting "off the wall" and that "most" of the rumors about him and other women just ain't true. Kind of weakens his case. The song becomes less a you-and-me-against-the-world act of defiance, and more the song of a pitiful broken man begging his girl not to leave. I'm sure that's not what he's going for.