It isn't a different platform though. Nobody looks at the top 10 all time and says, "oh let's make a group for perimeter guys and another one post guys". They are all put together, and Kobe isn't "lumped in the same group" as Jordan, Magic, Kareem and Russell. He is a notch below. Those guys are top 5 GOATs, Kobe is barely in the top 10 around where Bird and Hakeem are (however you want to shuffle them around), and below Shaq, and Duncan imo.
If Duncan wins this year, he will be top 5 imo. His 5 would be worth more than Kobe's 5 easily. Duncan and Shaq's 4 rings are worth more than Kobe's 5 as it is. Rings for annuel all stars don't automatically let players leapfrog others, otherwise Pippen would be the 3rd all time GOAT. It only counts when you're the best player on your team, or at the very least not playing with the best player in the NBA, which Pippen did for 5 of his rings and Kobe did at LEAST for his first two rings, if not the 3rd too (though you could argue Duncan surpassed Shaq by then, Kobe didn't yet).
I know Kobe/Laker fans hate to hear that, but that logic is applied to everyone, not just Kobe. He isn't being singled out. You could penalize Magic for one ring too (his first), but his solid 4 as the best guy still keeps him above just about everyone. Kareem's penalized some too (which is why he isn't the GOAT and Jordan is), but he was so great and won so many MVPs before that, that keeps him above Magic and others imo.
LeBron won't be a threat to Kobe's spot on the GOAT list unless he gets at least 3 rings. Which he's fully capable of of course. But if he only has 2? You can't put him above Kobe even though he was the better player. You still have to win the t les.