Bro vote democrat this time. I'm sure next elections the republican candidate will be better when they inevitably win. I'm sure the democrat candidate will be better too, bro, I swear, just vote. The spiral towards right wing because of the recurring "lesser evil vote" will get better bro I swear.
By either having representation from a third party which opens up the floodgates for future elections, or by forcing the Democrats to actually put a progressive candidate and adopt progressive policy under threat of never winning the elections again.