To be fair to Kane, unlike many other world class players, he hasn’t had that many opportunities to compete in big game situations. Not comparatively compared to other top players of his generation. He has played in just four finals across his entire career. Three for Spurs (2015 Carabao cup loss vs Chelsea, 2021 Carabao cup loss vs City, 2019 CL final loss vs Liverpool), and one for England (2021 Euro Final loss va Italy). In all instances for Spurs he was their key danger man, and almost their only danger man. If the opposition shut him down, they’d likely win the game. He was never part of some brilliant attacking unit that demanded equal attention for his team mates, and in all instances - bar maybe Italy - lost to the superior team.
You mentioned him not showing up for England when it mattered, yet in Euro 2020, for example, he scored against Germany in R16, two in the QF, and the winner in the semi-final. Only getting a blank in the final against defensive masters Italy. We wouldn’t even have been in the final if it wasn’t for Kane. By contrast, Cristiano Ronaldo has played in five world cups (2006, 2010, 2014, 2018, 2022), and never scored a goal in the knockout stages (8 games….might have been more if he had scored). With him, Portugal have played in two Euro finals - 2004 when they lost to Greece and Ronaldo missed two big chances, and 2016 when they beat France but Ronaldo went off injured early on and didn’t contribute to the result - in which he hasn’t scored or positively contributed; yet is anyone saying he doesn’t show up for Portugal? No, because that would be ridiculous, much like is the argument about Kane.
It’s so easy to manipulate the facts to fit a narrative by focusing on the game where Kane didn’t score, but it ignores all the games he did score in that got the team in that position in the first place. If it wasn’t for his goals, England wouldn’t have been in even half the latter stage situations they found themselves in, and through that lens, we could say his teammates let him down. Rather than vice versa. Now, I’m not necessarily arguing that, I’m just pointing out the folly of focusing so much on an individual when assessing the success of a side in a team sport. There are ten other guys on the pitch wearing the same badge as him.
You also cited 2015/16 as him not showing up for Spurs, which is perhaps the most ridiculous of them all. That Spurs team was fundamentally flawed, yet remained in a sort of weird, half arsed title hunt solely because of Kane. As pointed out already, in 2015/16 It was still a team sport, and while his team mates were doing their best efforts to meltdown when the going got tough, Kane scored 25 league goals. Even in that infamous game against Chelsea when the implosion began, Kane scored a brace. Their next highest scorers? Dele Alli on 10, and Christian Eriksen on 6. It’s just a really weird accusation to throw at him.
It seems really strange that in an era, more than any other, where the focus on team cohesion and functionality is higher than ever, we still obsess over individual performances in one off games to paint broad strokes about a player’s mentality or capability. But it’s a fool’s game. Look at Eder, scorer of goal….one international final, one goal, one trophy….is he a better big game player than Ronaldo on the international stage? If you had to select an all star line up for a one off Euros or World Cup final, would you select him over Ronaldo or Kane? No, I didn’t think so.