He’s not a surefire top 15 player. I have (in no particular order)
Lebron
Kawhi
Durant
Giannis
PG13
Curry
Westbrook
Harden
CP3
Wall
Butler
Davis
Cousins
Towns
All above him. That’s 14 players. So for the 15th spot I think he’s fighting with Lillard, who I think are really similar players. But that’s not even mentioning Derozan, Hayward, Griffin, and Gobert who I could potentially see someone taking over Kyrie.
Edit: Add in Klay and Draymond who are guys you could potentially argue for over Kyrie.