You are seriously misunderstanding what communists advocate for. We don’t want a benevolent dictator, we want democracy without the corruption caused by capitalism and we want it to extend to production without the “private property rights” of capitalists getting special say (to the extent that the economy can support other organizational methods, which depends on the level of development).

Workers have common class interests and make up the vast majority of the voters and that’s fundamentally what it hinges on.