No, Naruto is not powerless now. He is still one of the strongest shinobi in the world, even after the events of Boruto: Naruto Next Generations.
While Naruto may not be as physically active as he was in his younger years, he still possesses immense power. He has access to the Nine-Tailed Fox's chakra, which grants him incredible strength, speed, and durability. He is also a skilled master of ninjutsu, including powerful techniques like Rasengan and Sage Mode.
Furthermore, as the Seventh Hokage, Naruto holds immense political influence and is a symbol of hope for the shinobi world. He is constantly working to ensure peace and protect his people, using his diplomatic skills and strategic thinking to navigate complex situations.
Naruto is a complex character who has evolved significantly throughout the series. He may not be the young, reckless shinobi he once was, but he remains a powerful and influential figure in the Naruto universe.