Elections Are Frustrating Here

I live in Maryland, USA, which is so overwhelmingly Democratic the past few decades that it almost doesn't matter whether I vote or not.   The State Electors will be voting for the Democratic Presidential Candidate even if half the Democrats didn't bother to vote.  And my own Congressional District has Congressman House Majority Leader Steny Hoyer representing it and he is so overwhelmingly popular that he isn't even challenged seriously. 
When I moved to this County, it was somewhat Republican  but new arrivals from nearby Washington DC changed that competely.
Can you tell from that who I support?  Not really.  I could be a happy Democrat or a frustrated Republican.  As it happens, I started out as a Republican (though a progressive one) in the 60's.  Just for info, non-conservative Republicans tended to be called "Progressives" and non-conservative Democrats were called "Liberals".  There wasn't much difference but Progressives were a bit more economically "middle". 
The Nixon political inversion (he made Democratic Dixiecrats" Republican) chased me away.  It was a close call back then.  Unions were TOO powerful but Dixiecrats were MORE too racist.
I don't actually indentify with "party", but I've been forced to vote Democratic since Nixon from lack of ethical choices.  I supported 3rd Party Candidate John Anderson in 1980, but it was so hopeless by Election Day, I didn't bother to stand in the 3 hour line to vote (voting has become much faster since then).
Yeh, I vote Democrat.  It hasn't even been any hard decision.  Bill Clinton was better than Bush I , Al Gore was better than Bush II, Obama was better than McCain (hard decision as McCain was always honorable and trustworthy) and Romney had that election-killing "47% speech".
I thought Hillary Clinton was a walk-in against Trump.  An experienced Senator and Secretary of State VS an inexperienced sexist racist buffoon.  Easy choice and I settled in front of the TV to watch the blowout. 
OMG!  Election night 2016 was a horror show.  I was so horrified that I considered leaving the US.  But I had so much stuff it really would have been a serious bother or else Canada or Australia might have had me (and my retirement pay).  But I hunkered down and waited for Trump to be impeached as any honest Congressmen and Senators should have done.  That didn't happen, but, well, the next election wasn't far away. 
I'm worried.  Trump has arranged government in ways that could get him re-elected.  Voter polls are being purged of legitimate voters, voting locations are being shut down in places where he knows he will lose.  Mail-in ballots are being contested before they are even cast.  The Post Office, a trusted institution created in our Constitution. is being slowed so that ballots will arrive late.  Some places are demanding that mail-in voters come to prove their identity.
I find some comfort that many lifelong Republican strategists and power-brokers are fighting Trump.  But I don't know if they are enough.  All Trump needs to do is report the actual election day votes to declare victory and cause a crisis.  His supporters tend to vote ON Election Day.  The mail-in ballots are counted after the day.  And some investigations suggest that mail-in ballots are routinely dismissed/trashed and not considered "real".
Further, Trump has recently suggested that his followers deliberately try to mess up the system by voting twice.  Once by mail and once on Election Day.  Never mind that voting twice, trying to vote twice, or even encouraging people to try to vote twice is a felony...  There seems to be nothing Trump won't try to stay in office.  And he has expressed a desire for "12 years".
When Benjamin Franklin emerged from the building in 1776, someone shouted out, “Doctor, what have we got? A republic or a monarchy?”  He replied “A republic, if you can keep it.”  It is sometimes debated, but he did say that in a letter to a friend though.
So the question is, can we keep a republic (because we are not actually, technically, not  a "democracy" if we were, then  Al Gore and Hillary Clinton would have been Presidents by legitimate popular vote) and can we keep it.  This election will decide that.
Vote as if your children's future will depend on it.  Because it will...
Trump wants to be Putin.  Biden wants to be a normal US President.  That's all there is to it.