Democrats and Leftists screwed their own pooch and brought matters to what we see today. They had the chance to nominate Tulsi Gabbard as their Presidential candidate who rated high with Democrat voters but also rated very high with Republican voters. Tulsi had the best chance to win of any candidate and was easily the top contender to beat Trump. Nationwide, Tulsi was an automatic vote-landslide.
Of course, we all know how the DNC doesn't factor anything logical into their calculus, and wouldn't give Tulsi the time of day because the DNC has already promised Presidential candidacy twelve-years out.
Imagine if the DNC had simply decided to defeat Trump in 2016 and run Tulsi.