Sakura could prove them wrong by showing her medical skills. In many Naruto scenarios, her ability to heal the injured is crucial. For example, she was able to keep many ninjas alive during battles. Also, she has been training hard in combat. She might challenge one of the members of Team 7 to a spar and show her newfound strength and skills.
Sakura can prove them wrong simply by demonstrating her growth. Remember when she was able to smash the ground with her punch? That's a sign of her power. Moreover, she has a strong will. In the face of danger, she doesn't back down. She could put herself in a dangerous situation where Team 7 doubts her, but then she comes out victorious, thus proving her strength.
Sakura could use her intelligence to prove her strength. She has a sharp mind and is able to analyze situations quickly. For example, she can figure out the weaknesses of her opponents during a battle. By using her intelligence in combination with her skills, she can show Kakashi that she is a force to be reckoned with.
Another way the plot could develop is that Sakura confronts Kakashi directly about his comment. They have a heart - to - heart conversation where Sakura reveals her insecurities but also her determination to be strong. This could lead to Kakashi mentoring her more closely, helping her to reach her full potential and strengthening their relationship in the fanfiction.
She might be really hurt and start to question her self - worth. Maybe she becomes more withdrawn and less confident in herself.
One reason could be that they are comparing her to the more physically powerful members like Naruto and Sasuke. Naruto has the Nine - Tails' power and Sasuke has the Sharingan. In comparison, Sakura's initial abilities seem less flashy. Another reason might be that they haven't seen her full potential yet. Maybe she hasn't had a chance to show off her improved combat skills or her advanced medical ninjutsu in front of them.
Sasuke could prove his remorse to Sakura in fanfiction by sacrificing something for her. For example, if there's a powerful jutsu he's been seeking but has to give it up to save Sakura, that would be a huge statement. He could also be more affectionate in public. Sakura has always wanted Sasuke to show his emotions more openly, so a simple hug or holding her hand in front of others would be a big step in showing his remorse.
Well, Naruto is like the front - line protector. His love for Sakura, whether platonic or more, drives him to be her shield. He'll take on any opponent without hesitation. Sasuke, having grown up with Sakura, has a sense of responsibility. He'll use his Sharingan and combat abilities to protect her. Kakashi, with his vast knowledge and experience, anticipates threats to Sakura. He'll position Team 7 in a way that Sakura is least likely to be in danger. All these aspects contribute to how Sakura is protected by Team 7 in fanfiction.
He could also get angry. After all, being misjudged like that is unfair. His anger could lead him to either lash out verbally at Sakura or he could leave the village in a fit of rage, feeling that he is not accepted even by his friends. This could then lead to a series of events where Naruto has to find his own way and Sakura realizes her mistake later on.
Sakura would likely be initially terrified but quickly regain her composure. She is a trained ninja after all. She might start by assessing her situation, looking for any weaknesses in Team Hebi's defenses or any possible escape routes. Sakura would also try to talk her way out of the situation, using her intelligence to reason with Team Hebi. If that doesn't work, she would be ready to fight back using her taijutsu skills and any medical ninjutsu that could be used offensively, like her chakra - enhanced strength punches.
She is often given enhanced combat skills. For example, she might be shown as being able to take on powerful opponents single - handedly. Her punches could be made even more powerful than in the original, and she could have new moves that are a combination of her medical and combat knowledge.
Sakura could also use her strength in combat. In the fanfiction, she may have developed new jutsu or fighting techniques that she uses to protect her teammates and help them achieve their goals. For example, she could use her precise chakra control to enhance her attacks and defenses, making her a valuable asset in battles.