Biden pulled more votes from a larger voter pool. There were 27 million more Americans in 2020 than in 2008.
Biden pulled a larger slice from a larger pie.
As I posted earlier, in 2018, there were 153 million registered voters. This election, 153.8 voted.
Given the fact our population did grow, we have to consider how many of those people in that growth were under the age of 18 who could not vote, how many were illegals who could not vote, how many of the adults registered to vote, we have a 100% or near 100% voter turnout. That's not possible and has never happened in modern times.
Nobody can tell me nothing was wrong in this election.