Again, I'm not against them wanting to help Deku(I'm against them wanting Deku to go back to UA) , it's obvious he needs help and what they are doing its correct. I don't want them to fight neither.
But that's for Deku as a character, now If I talk about the story I don't want Deku returning to UA and doing their school life once again knowing that outside de school territory its a lawless country with villains doing whatever they want and without enough heroes to stop them all.
I wouldn't mind if the students also go outside with Deku and fight alongside him but that it's not the objective they are trying to achieve so I'm against what they are trying to do.