The lower classes in the kind British urban communities that Akala comes from (specifically, North London) commit immoral acts for money. Violence and drugs are rampant. Members of these communities are born into a context that leaves them with few other options, or at least they’re lead to believe this is the case.

Continuing the theme of the song, that is, relating the culture and environment and particularly drawing parallels between the hood in the US and the hood in the UK, this references the recent emergence of bloods and crips in the UK, mimicking what they’ve heard in music and popular culture exported from the US.

Reference to rumours that when the Wrestler, the Ultimate Warrior, returned to WWF/WWE, he had actually died and been replaced with completely different guy.

The song that this question references is And This Is For…, where Murs very frankly examines race, at one point discussing the relative sales of white and black rappers, and comparing the surge of white entrants into rap to the way that blues and rock were misappropriated from black culture.

Chuck D, of Public Enemy, went as far as to call this song one of the greatest rap songs of all time.

Some choice quotes:

Any white boy who thinks he knows my struggle
Cause he listens to Pac and his adrenaline doubles
Now I ain’t got problems with you being yourself
But when you front and use the N word, it just don’t help

Why wouldn’t you abort me, my own people have
I feel I should have the scans white rappers have

Murs' later concludes the following, on a hopeful note:

good music transcends all physical limits

As in, an appeal puts you back on the streets because you ain’t in the jailhouse and that, and his gun will put your back on the streets