If I'm not mistaken, Marx at one point stated that in his very time the UK had sufficient material conditions for The Revolution to happen however The Proletariat had not achieved sufficient Class Consciousness. If material conditions are already indeed sufficient, how will you determine when Class Consciousness has reached critical mass to start murdering Capitalists?
And before you start misusing the term "straw man", you will indeed have to threaten and kill capitalists.... Power is not surrendered from the powerful voluntarily and The Capitalist has no reason to want to surrender his capital.
So given it's been about two centuries since Marx declared material conditions were suffici