i'm getting the impression that you are throwing the word 'bigot' around w/o even realizing or knowing what it means:
a person who is obstinately or intolerantly devoted to his or her own opinions and prejudice.
Now in this particular situation(since this definition is the relevant one to the topic), it doesn't make a lot of sense for Madara to be a bigot and yet be completely open to the idea that a woman could be powerful, all while he knew that once upon a powerful woman existed. And i'll say it again, his dialogue in that moment was clearly directed towards Tsunade and Tsunade alone. He even made another statement saying the only thing he disliked more than a Senju was a weak Senju. Yet because Madara refers to her as a woman, it somehow translates as him saying all women were weak when he was only comparing 1 woman's abilities to Hashirama's. He complimented Hinata, Mito, and Kaguya at various points. How exactly does that make him bigoted towards women?