You aren’t pessimistic - you are realistic. I imagine SCOTUS could just punt on the whole thing and say - sorry, the states have made their decisions.
Many things need to align for Trump to win this. Simply having obvious proof of fraud is hardly enough.
We live in an increasingly corrupt country. Not as corrupt as most, but corrupt nonetheless.
I remember having discussions with my brother back in the 70's when we were teens and young adults. We naively prided our nation as not being corrupt like Mexico, a lot of the banana republics, the Iron Curtain nations, Asian nations, African nations, and of course the mid-East. However, in the past 20 years I have come to the conclusion that our nation is severely corrupt - from the grassroots all the way to the top - including the Executive Branch. I am not saying President Trump is corrupt but the majority around him are.
I have read the Bible and a little bit of history. Corrupt and degenerate nations do not last long. I believe the United States are well into that phase.