I assume you've never been responsible to fix something when it blew up in the plant. Or given a 2 day notice to spend 10 weeks working in another state to help fix construction problems in the field.
Or been a surgeon, offshore drill rig operator, or one of many jobs that have significant and changing time commitments beyond 9-5.
No, I haven’t. But I have had 70-hour workweeks and long commutes. Four years ago I was out of town for work during the week of the election, but I had enough notice to take advantage of early voting. I understand your point — but it would also seem that most of the people you mention could be accommodated by early voting or absentee voting or mail-in voting. In any case, the ones you site are the hard cases, and don’t account for the half to two-thirds of eligible voters who regularly fail to vote at all.