It wouldn’t really help I think, I think what needs to be done is a change in the verbage and communication, nov 5th should be communicated as the deadline, and early voting should be renamed to just be the voting period.

In my state early voting starts on Oct 17th, meaning you have more than two week for in person voting.

Absentee ballots (mail in) can be cast as soon as you get it, which is typically almost 2 months in advance.

Besides, the people who would get ‘national vote day’ off as a holiday are the people who probably already have the means to get to a ballot box.