I’ve never really seen what the big deal about this is. Anybody that doesn’t vote because the networks called the election for the “wrong” guy is just excuse mongering, they weren’t going to vote anyway. It’s not like president is the only thing to vote for, all the congressmen are up, 1/3 of the senators, tons of state and local office, propositions, judges. Most states have multiple pages of ballot this year, some the ballots are approaching novel length, no reasonably intelligent person would skip all that just because CBS called the presidential election for the “wrong” person.
When you are looking at a 90 minute wait to vote after work and the leadership of the nation is already lost, some people will decide to just go home (Democrats will have a majority in Congress anyway).