A leader is someone people follow. That's it. I try to avoid projecting my own values on leadership, as it's a relatively neutral concept. I think there are plenty of leaders that I don't like or wouldn't follow. Doesn't make them less of a leader. I don't assume nobility comes with leadership. Throughout his entire football career - HS, Blinn JC, Auburn, Panthers - his teammates have followed him. He plays tough and loose, typically, and his teams tend to embody that personality.
Now your turn, based on your definition of a leader:
Which boxes does Trump check?
Sets an example?
People can look to when things aren't going their way?
Takes criticism in the good times and the bad?
Motivates people?
Doesn't make excuses?
Doesn't pout and whine?
Which of those describe Donald J Trump? Or do you have a higher expectation for 20-something NFL QBs than Presidents?
Also, as an aside, you really seem to like to use the term "bait", why do you think that is?