The Marxist critique of capitalism (the specific real world system dominant in the deceloped West at the time Marx wrote) is quite popular among people whose end goal is not Leninist state capitalism.
Marx himself, prescriptively, wasn’t all to specific beyond the distant end-goal stateless system and the immediate next steps in contemporary states (particularly, in terms of a detailed agenda, Germany, but he made some commentary on some steps other places.) But even where he was, plenty of people that share his critique of capitalism either don’t see his intermediate term prescriptions as realistic areas of concern for organizing current effort, or don't see them as mevessarily desirable at all.
Marx himself, prescriptively, wasn’t all to specific beyond the distant end-goal stateless system and the immediate next steps in contemporary states (particularly, in terms of a detailed agenda, Germany, but he made some commentary on some steps other places.) But even where he was, plenty of people that share his critique of capitalism either don’t see his intermediate term prescriptions as realistic areas of concern for organizing current effort, or don't see them as mevessarily desirable at all.