Loyalty has become a rare good in the world of professional sports, but I also understand when a player wants to win some titles. It is what sportsmen are competing for eventually. If he now decides to leave Tottenham, I think it would be right to appreciate what he has done for the club but also respect and welcome his decision to start a new chapter elsewhere and pursue his dream to win a trophy or two. Part of the truth is that Tottenham isn't the right place to win anything right now. He has to leave now or he won't leave ever for another club in Europe.
There is no point if Kane stays there or stays with Spurs, it is time for him to seek new experiences and new achievements including the trophies he has dreamed of which he will most likely get when he joins another team. Nothing can stop him if he really wants to leave and I hope the management will respect whatever decision he makes including his departure. So far I have heard rumors that many big clubs want to ask for her hand, but on the other hand Kane has made a statement that he only wants to move to Manchester United, and this effective attitude has indirectly dashed the hopes of various big teams who want to ask for her hand like Bayern Munich and Real Madrid. But I don't know exactly what the facts are, I hope he will still leave Tottenham in the summer because after all, it is for his own career.