Kanye West -- I'm Not Apologizing For Wheelchair Flub ... I'm the Victim!

Kanye West says he's not apologizing for refusing to perform until a wheelchair-bound concertgoer stood up this weekend during his concert ... because the rapper believes HE was the victim.

Yeezus attempted to explain himself during one of his signature rants Sunday night in Brisbane, Australia ... but instead, he started attacking Matt Lauer.

Kanye says people need to lay off of him ... because he's a "married, Christian man."