Is he really gone?
While many fans are still in the stage of denial, we have to get up and accept that the tailed beast has served his best friend and master well and has left as a hero.
Kurama went from the sole reason why Naruto lost everything in his life to becoming one of the most treasured friends of Naruto. If not for hardworking Naruto and his powerful friend, the Shinobi all around the world would have faced their doom.
How powerful is Naruto now?
Well, the Naruto we saw in the last war in Shippuden was vulnerable but amazingly powerful. But that teenager has grown far since then and is now the protector of the village.
He went from being the most unpredictable ninja to become the strongest in the generations who even had the power to take down gods.
Naruto, even without Kurama, is powerful, but with Kurama and a lot of experience, the one we saw in Boruto was a class apart.
Everyone, including Boruto and Sasuke, were in awe of him at times. Not to mention Iwabe dropped his jaws to the ground every time Naruto was around.
Now Naruto unlocked the powers of Kurama only in the last part of Shippuden. He frankly got Kurama‘s complete trust only then.
But do not forget that Naruto took down some formidable enemies even before when he was unpredictable and just a kid.
In fact, like Kakashi, Kurama was also in retirement and woke up only when the village was in grave danger.
Previous Naruto Achievements
Well, that fight had a lot to do with Naruto convincing Nagato, but still, the kid is now an adult with massive powers and experience beyond his age.
Still, the other beasts have some kind of connection and have their fraction of powers stored in him so, don’t worry, he will be just fine.