I wonder what their idea of the outcome is.

Tankie: "I convinced 20 Democratic Party voters to stay at home (and did the same for 0 Republican Party voters). Wait until Democratic politicians see that more voters favored the far right party. Then they're going to move left and fall on their knees and beg me to forgive them."

(Cue scene: swastika-adorned tanks rolling past the window)

"Stupid liberals, unwilling to fight the fascists like us true leftists." (Watches tanks and twiddles thumbs.) (Fetches keyboard.) "Let's tell everyone online that it's their own fault and they deserve this." (Sudden sound of harsh knocking on front door.)

At best, their actions will "only" cause another grid-locked presidency where progressives can't get their reforms to pass (which will then be used as the reason to abandon the likely last line of non-violent defense against fascists).