I agree with all of this except:

"The election doesn't matter, it's been rigged for decades. They're just causing a big fuss to sow more division between left and right."

1) The election was very important. Regardless of how you see it, there are now millions of Americans who feel that they have had an impact on the future of their country. Even if you argue with this, it is important.

2) It's because there have been ways to rig the election that millions of additional votes (even from dead people, if you want to believe that) were necessary to win the election. An overwhelming number of anti-Trump voters wanted to be heard. (Many GOP members were re-elected in their gerrymandered and Fox/Sinclaire-brainwashed regions, however, which is still worrying.)

3) In terms of who sows division, the GOP are the undisputed leaders in this, and support for Trump was a culmination of this development since the approaches of the Nixon admin. Because the GOP has a long history of supporting the 1% at the expense of the 99%, their political weapon has always been to sow division, gerrymander, use electronic voting machines, limit election reform, and use corporate money to control Fox/Sinclaire style propaganda as if it were news, and thus limit the popular vote.