It's demonstrably not true. Why bother having a one-party state if voting doesn't matter? Why bother stuffing ballot boxes, why bother restricting the ability of particular ethnic groups from voting? Of course it matters. Election fraud also exists, but simply proves the point even further. Voting does in fact have a point, otherwise why bother with all that other malfeasance? It's like pressing your ass up to a picture window when you do any of that. Or like performing a genocide in Gaza before the eyes of the world.