Not disputing that. The poster said that PA was the ballgame. It isn’t. Biden won a convincing electoral college victory.
The excellent turnout on both sides for this election effectively show us where we are in this country. It is a ~52/48 slight D lean country, with the Rs having advantages in the House (gerrymandering), Senate (two seats per state) and Presidency (electoral college). Dems have to win by 3-5% or more to counteract these factors. They did, barely, for the Presidency and House. The lean is more pronounced in the Senate, where some estimates say that the Ds need a +7 national win to grab the majority. All elections are effectively turnout elections with few voters crossing over.