Find this pretty funny on a host of levels . Especially after dealing with people who claim to be Marxists.

I have to wonder at what point in his life did he say that. Then my next question would be, did he actually say that. And if he did, did he mean it or was it just an empty rallying cry for convincing the commoners to go along.
Marxism can only work if you have complete control of the populous. An armed populous in not conducive to complete control.

He said it but what actually went down was not what he thought would go down. Marx believed the proletariat would rise up but in actual practice every socialist revolution that has occurred did so under the leadership of disaffected intelligentsia. Much like antifa today being largely white rich kid larpers.