WTF? First you ask what he ever became a leader of, then say "that the leader".
You do realize attaining leadership is not accomplished instantaneously for most people, that they tend to start with a few followers and that grows over time. How many blacks find inspiration in MX? How many quote him, particularly during rioting/violence?
But let's not use my opinion here, let's first start with a definition of Leadership according to dictionary.com:
http://dictionary.reference.com/browse/leadership
As for how many quote him (which is equivalent to looking to him for guidance which is in the definition for leadership), let's just consider this site for a moment:
http://www.brainyquote.com/quotes/authors/m/malcolm_x.html
That's quite a few pages of quotes there, so that's a pretty good foundation.
Finally, let's google whether or not MX was ever a leader of the black community:
https://www.google.com/?gws_rd=ssl#q=was+Malcolm+X+a+leader+of+the+black+community
Do I need to continue with this exercise? MX is viewed as a leader among the black community.
Pretty wacky shit, eh?