I don't think anyone has actually read the OP. Madara is EMS Madara... so no rinnegan, no meteors, no wood. Which means the only attack we've seen thus far that doesn't rely on those powers is his fire jutsus which can be countered by Mei.
Susanoo's shall be broken by Tsunade. And no one can absorb oonoki's jinton. A could blitz and kill them out of Susanoo. Gaara will take care of Amateratsus. Mei covers fire jutsus. Gaara can own with his Sand burial. Tsunade will heal injuries and donate needed chakra. And then there's Katsuya. if Tsunade places a mini katsuya on everyone she could heal everyone from a distance. In terms of genjutsu. Tsunade will stop that. Given how easily she undid the damage done by Itachi's tsukyomi on both Kakashi and Sasuke I'd say she knows the genjutsu well. In addition to her precise chakra control she will probably be able to end any genjutsu inflicted on her and force her chakra in others through Katsuya.
Edit: So how exactly will the Uchihas beat them?