to reduce voter turnout on the left

It's not really voter turnout on the left if you turn out to vote for the Democratic party which is an enemy of the left. That's voter turnout on the right. I am a socialist, why would i condone voting for enemies of socialism? I am an anti-imperialist, why would i condone voting for imperialists? I am anti-war and anti-racist, why would i condone voting for racist warmongers?

You keep missing the point and thinking that Democrats winning is somehow a beneficial or desirable outcome for leftists. It is not.

how doing exactly what the government wants

What the bourgeois government wants is for people to keep voting for either of the two fascist warmonger parties. It doesn't really matter which of them you vote for because the bourgeoisie wins either way. Just so long as the illusion of democracy is maintained. Just so long as the unrest and frustrations of the masses are channeled into activities which fit within the predefined framework of the system.

Voting for the "lesser evil" is how we got here. It's how we slide deeper and deeper into fascism.