It’s possible things will turn out as you predict. On the other hand, maybe not. The alternate possibility is that Biden turnout will fall short among the young, urban minorities, Progressive SJWs, Hispanics, and suburban women. Nominally Biden voters, many in these demographic groups have very lukewarm devotion to the Democrat candidate. Many of Biden’s more committed voters have already voted by mail. How many more Biden voters have not already cast their ballots? Perhaps very few. Biden’s Achilles Heel is low enthusiasm. Lots of nominal Biden voters are barely committed. With no rallies, no excitement, and no ground game, the Biden campaign is going to find lots of people don’t actually show up at the polls. The truly committed have already mailed in their votes. The marginally committed Biden voters haven’t mailed in votes and many will “forget” to vote on election day.