I don't think anyone thinks LeBron has a bad team around him, he has a very good team around him, and it's a team that would have a high probability of winning the title...if not for how ridiculously stacked GS is. That's an unprecedentedly stacked squad. So when people say LeBron doesn't have enough help, it's not relative to the rest of the league, it's simply relative to GS.
However, I am not a Kyrie fan either. I think he's a generally low impact player that doesn't do anything particularly well except score in isolation, and even then, his decision-making is poor, since we saw how he wasted the Cavs' last possession in game 3 by going all And-1 mixtape on Klay for most of the possession when they had a 2 for 1 opportunity, and then subsequently bricked the 3. He's a poor defender who gives away almost as much as he gets with his scoring, and his general abilities as a PG are severely lacking, although his technical abilities as a passer are pretty good. He really is pretty bad in the PnR, because he almost never looks to pass, only shoot.
But people will always overrate ISO scoring. Most people can't comprehend how a guy can score 25 ppg but not have much of an impact, but that's Kyrie for you.