If I was him I’d stay at Spurs and become a club legend. He would do that if he stayed his entire career there. Players are too often caught up in the now, in getting a medal, they don’t think of the bigger picture.
The obvious case in point is Matt Le Tissier. For the rest of his life he will be adored by Southampton fans. Shearer at Newcastle the same. I read an article a few months back (can’t recall the player) that he has a few medals in his cupboard (which he never looks at), but he’s got no lifelong connection to any club, and he’d swap that in a heartbeat. It’s an article that really changed my perception of what means most. Adoration is priceless. Kane has that, he’d give all that up by winning a few largely meaningless medals at a club that he has no affiliation to. By staying at Spurs and doing all he could do to win medals there would mean a lifelong connection and adoration for the rest of his life. A wise man wouldn’t give that up