1. I would stand up for the sixth grader. It wouldn't matter if my friends would hate me after or not be my friend anymore. That also shows their "Fake Friends". Real friends wouldn't hurt other people. It doesn't matter if that kid is a sixth grader or not, were all the same. And there's a life at risk if nobody does anything. Imagine if that was you. Suffering all because these kids think their "cool", you would like someone to help you right? So, stand up for the Sixth Grader, stop the fighting, and save a life.
2. Yes, I tink my actions would be helpful because, if it means to help a kid out of bullying and fighting and help them survive it wouldn't matter what others think. Bulying/fighting doesn't solve anything it just makes it worse. If you stand up, there are more chances to help stop this from happining.
Hope this helps :)