Winning matters in every sport, not just American sport.
The gradation of greatness appears to be thus:
1) Win playing beautiful football
2) Just win
3) Don't win but play beautiful football.
Re Jordan, I don't know if you are old enough to remember but Jordan was criticised a great deal before he won. And that criticism was fair, because although he was clearly an awesome talent, it was felt that he could be pushed around. He had to build his body up and come back stronger to get over the hump. He also had to become less selfish
If you don't like the term 'clutch' by the way, let me substitute the far more traditional and Anglo football approved term 'big-game player', a moniker that I don't believe applies to Kane.
Winning matters and winning doesn't depend on single individual.
Also Jordan, Lebron example should prove how stupid this "Kane didn't win anything" points are. Both of them didn't win until they were in their late 20s, one of them even switched teams to win title.
So if Kane joins City or Bayer or even Celtic all of a sudden he will have winning mentality just because he will get league winner medal? Is Phil Jones some sort of winning mentality player than every Spurs player who played in last 20 years?
Players who left Spurs have gone on to win big trophies, there are plenty of examples. Just because player didn't win anything at Spurs doesn't mean there is some problem with player mentality. Like I said, it's a squad game, trophies are won by teams that have best players and best coaches with few exceptions here and there.
Oh "big-game player' thing, that counts only if the player scores or assists but doesn't record his impact when he plays his player through multiple times playing awesome over the defense passes.
Also yes, clutch is a bs term in football, sort of used by Messi vs Ronaldo maniacs for some odd reason.