Why Are Federal Elections Held on Tuesdays?

I always wondered by federal elections were held on Tuesday.  Now I know.  Years ago, when the framers of the Constitution were deciding what day to hold elections, they determined that Sunday was out because it was the Sabbath for most people and Monday was out because traveling to the voting location would take another day.  Voters traveled by horse and buggy to get to the polls.  Wednesday was also out because that was market day, and we were a heavily agrarian society at that time.  So, Tuesday became voting day.

Fast forward 250+ years and you may ask yourself why we haven't changed the day of the week for voting.  We have one of the lowest voter turnouts of any country, and if voting were to take place on the weekends, many more people would be able to get to the polls.  Early voting  and on line voting increase the number of voters, but why doesn't everyone vote?  The way it is today, many people simply cannot get to the polls.  Either they can't take off work to vote, or they have no transportation to vote. There have been bills introduced in congress to change the federal day for voting, but so far, nothing has changed.

My suspicion as to why it hasn't changed is that Republicans don't want it to change.  We all know that when voter turnout is low, Republicans do better.  This is a fact.  So why would Republicans in Congress want to change the day of voting?  They wouldn't.  Many countries, like Israel for example, hold elections on the weekend.  Voter turnout is much higher.  Keeping the voting day on Tuesday is just another example of voter suppression.  Kind of like the ID's that need to be produced in so many states these days.  This is not done to prevent fraud.  There is so little voter fraud that it's insulting for lawmakers to tell us that fraud is the reason for voter ID laws.  It's to suppress the vote, just as keeping the voting day on Tuesday does.  I thought that in a Democracy the idea was to give every citizen an opportunity to vote.  Apparently everyone doesn't see it this way.