It is never about winning the election. Or voting in a third party.
What the radical left are doing is sitting out in protest of a broken system. Over here in the UK we had the lowest voter any living generation would have witnessed. The reason why is we are disenfranchised and won't support the elites.
This is the kindling of a revolution.
Anyone who doesn't understand this should school themselves on historic materialism. No amount of wining will change how large swafts of people react to their material condition.