Kakashi would be deeply troubled. He's seen Naruto grow up and has always believed in him. He would probably try to understand Naruto's reasons first. Kakashi would attempt to talk Naruto out of it, using his own experiences and their relationship as a teacher - student. If that didn't work, he'd have to face the difficult decision of whether to fight against Naruto, which would be a very painful choice for him.
Sasuke would likely be conflicted. On one hand, he and Naruto have a deep bond, but on the other, Sasuke has his own ideas about justice. He might try to stop Naruto at first, reasoning with him. If that fails, he could be forced to choose a side, either to support Naruto's cause if he believes there's some merit to it, or oppose him to protect the shinobi world as he knows it.
The villagers of Konoha would be in shock. They've always seen Naruto as their hero, the one who saved them from Pain. But if he starts a war, they'd be divided. Some would still believe in Naruto and think he has a good reason, while others would feel betrayed. This would cause a lot of internal strife within the village, with different factions forming depending on their stance towards Naruto's actions.
Chapter 11 is the strongest chapter-level answer because it starts from After a meeting, Shang Shaojing pinched the bridge of his nose, tired, and... and follows through on Miss Qin, please accompany us to the police station to explain this....
Chapter 714, "I'm Using Voice Input", is the clearest early answer because it turns Shen Lan's situation into a concrete plot event. The chapter turns that into something concrete by moving from Jiang Li looked at Jiang Mingyu, who appeared deeply hurt, and...
Chapter 739, "Not Paying Debts, Shameless!", is the clearest early answer because it turns Jiang Li's situation into a concrete plot event. The chapter turns that into something concrete by moving from Shu Yan isn't that ill, it's just a common cold, no, no need to go to...
Chapter 443, "Did Jiang Li Steal Team F's Home?", is the clearest early answer because it turns Team's situation into a concrete plot event. It opens with Team D's captain, curious, turned around and was surprised to find...
Chapter 860, "Is your friend feeling unwell?", is the clearest early answer because it turns Fairy Sister's situation into a concrete plot event.
Chapter 544, "I Shouldn't Have Stopped You from Pursuing Shang Shaojing Back Then", is the clearest early answer because it turns Su Yinwan's situation into a concrete plot event. Early on, [Hahaha, I'm laughing my head off, how come I never knew Miss Zhuola....
Chapter 626, "Emergency PR!", is the clearest early answer because it turns Jiang Cheng's situation into a concrete plot event. A useful checkpoint is the way the scene starts with The drone hovering in mid-air had precisely captured this scene, and...
Chapter 463, "Even if it's a Wild Boar, I'm Willing!", is the clearest early answer because it turns Dragon Ridge Island's situation into a concrete plot event. Early on, The evening glow gradually bathed Dragon Ridge Island in a dazzling.... By the end, [What??] [Looking for a wild boar??.
Chapter 631, "It's Him Who Got Hurt, Then It's Fine", is the clearest early answer because it turns Hurt's situation into a concrete plot event.
Chapter 463, "Even if it's a Wild Boar, I'm Willing!", is the clearest early answer because it turns Willing's situation into a concrete plot event.