I just realized that madara may have no idea that his clan have been wiped out. yeah, they abandoned him and then he attacked the village with the 9 tails, but still, that doesn't mean it was his attentions to slaughter his clan but maybe gain control. that's if it wasn't totally based on getting hashirama's cells.
what is your prediction of madara finding out tobi conspired to wipe out his clan
? (assuming madara had nothing to do with it)