What term do Marxist theorists use to describe the underclass devoid of class consciousness?

Just as technology and basic education (being able to read)has provided the means for easy access to knowledge and the elimination of this class, along comes the 'cancel culture' determined to firmly put them back in their ignoramus place and add a few more to them while they're at it.

To “ criminals vagabonds and prostitutes “ you can add “ Politicians “! Oh , hang on a minute……….

Sheriffe, there seems to be a lot of them about these days, living in Trumpland