It's possible that Marx was right about that specifically, and that capitalism will destroy itself naturally through sheer technological innovation by automating everything to the point economics becomes irrelevant.

I'm deeply suspicious of any socialist or communist who desires to implement a socialist state, however. His prophecy must come true naturally, it cannot be forced via government mandates.

Socialists want to get rid of capitalism as the economic model and then transition to post scarcity. I want to keep capitalism until it destroys itself by making everything abundant and automated.

There is no need to "seize" anything. We merely need personal manufacturing technology.