Except the Uchiha are not weak. You can't ignore the fact that Tobirama was wrong for what he did. Konoha could've been a powerhouse if it were not for him. But just like another hater, you would rather blame the Uchiha for everything and ignore the injustices and oppression they suffered since Tobirama came into power.
So I ask again:
"How would you feel if you and your family were stripped of your freedoms, oppressed, treated like dogs, and kicked out of your homes to only live on the outskirts?"
With a solid alliance between the Uchiha and Senju without malicious intent being made, Konoha would've been an unstoppable force. Hashirama and Madara could've made a peaceful world together, but Tobirama's stupidity ruined everything.