Marx envisioned seizing the means of production when that was a big industrial machine, an object which could be seized.
What would the “means of production” even be in a modern services economy? The workers themselves? Critical infrastructure?
Marx never intended his ideas for agrarianism, nor for modern services economies. You might conclude that the time for his ideas came and went, and those ideas never manifested as anything good during that time.
But they’ll be appealing fantasies forever.