Yes and no.
Generally ENTJ people don't jump at the first opportunity at leadership, but if the current leader isn't meeting their expectations or doing things their way they will take over. However, once they do take up leadership responsibilities they are usually seen as good leaders because they will try to make things efficient as possible.
I was about to say
I'm not quite the leadership type
as in whenever we're doing groupwork I never volunteer but everyone in my group always votes me it because of some unanimous reason that I've never attended the voting to
also seems legit
perhaps jfk was an entj :o