I don't think the idea that certain wings of the capitalist class coalesce around different capitalist parties and therefore invest in elections heavily is antagonistic to the idea that neither party represents the interests of the working class. Capitalists are not a monolith, so they duke it out electorally, but workers end up getting crumbs at most regardless of who wins at the ballot box. It makes far more of a difference for them than it does for us.
Also think it's funny that socialists supposedly can't read, while also reading too much. "The enemy is both weak and strong," yadda yadda.