Jaylen consistently rates really poorly (relative to his box score production) by impact metrics. In other words, if you look at how the team performs with/without Jaylen it shows you a slightly better than average player, not a star. That’s been persistent for years. As one illustration, Jaylen ranked about 80th in the league by LEBRON last year. His comps are guys like Smart, Herro, Lavine, Tobias Harris, and OG Anunoby. I don’t think anyone here thinks that’s an accurate measure of his value, but I’m extremely skeptical Jaylen is a top 30 player and he’s nowhere near that group of 5 guys you list.
Ignoring older players where 6 years from now it’s hard to see them being good, additional players I’m confident are better than Jaylen are: Ja Morant, Doncic, Mitchell, Halliburton, and Booker. There’s a bunch of other younger players I’d probably bet on being better than Jaylen like Mobley, Jaren Jackson Jr., Fox, Sabonis, Porzingis, and Trae, to name some but not all guys in this category. I think there is a reasonable case for Jaylen over any given player in that group but there’s no good case he’s better than all of them.