8 million voters that voted for Obama voted for Trump. That fact renders your last sentence false. 

Trump signs dominated the landscape of the American Heartland long before news of leaked emails. The voters that Obama had previously successfully engaged, Hillary either sneered at them or outright ignored them. Salt of the Earth types in the American Heartland don't take to being sneered at. 

Russia had nothing to do with the outcome of the election. The very same people that elected Obama elected Trump, and their decisions were made long before November. The only fact that can be established in this last election is that Hillary's strategists failed in epic proportions. Anyone that took a fishing trip in a midwestern state during the late summer of 2016 could see that as plain as day.