RIP.
Seriously, this isn't good for the Democratic Party. Not good at all.
You guys pushed the divisive culture war issues too far. You were "fighting transphobia" when you should have been fighting poverty. If you want to win over Southern (and Midwestern) whites, then you need to return to the New Deal and drop the GLBT stuff.
Sounds like you have an agenda and are projecting it onto these election results.
Also, uh, y'all need to stop being so reactionary. The GOP was a "5 state party" after 2006 and 2008. Unpopular presidents happen, message wars are won, midterms happen, and then the situation is reversed. Don't forget that the Republican gains from 2010 and last night will next be contested during presidential years. The Senate can again be the complete opposite of what is is now after the 2020 election, no matter who wins the Presidency.