I'd have to add Spain to that list - Xavi, Iniesta, Ramos, possibly Busquets and Puyol. But of course like so many of the better, but not comparable, English players none of these tested themselves in foreign leagues (a personal and completely arbitrary test that I like to think helps identify some of the traits 0f the really good players - the willingness and ability to adapt and learn from alternative tactics/approaches/footballing cultures) - not surprisingly if you're playing for that Barca team.
FWIW my "world class" criteria is that they'd get picked in a World squad of 18 of their contemporaries. France certainly has a current team that could mature with a number that fit my classification.
Kane's undoubtedly a class act (and has an excellent coach at Spurs). I'd really like to see him ply his trade in La Liga or the Bundesliga and then come back a more rounded player to lead England to World Cup glory in 2022!!