More voter turnout wouldn't have changed anything. From https://www.politico.com/news/2025/06/26/2024-election-turno... , "The survey suggests that 'if all Americans eligible to vote in 2024 had cast ballots, the overall margin in the popular vote likely would not have been much different'"

This also matches what Democratic-leaning pollsters like David Shor have said in their own analyses.