> First, please don't give German lessons if you don't speak German.

I did not claim to speak German. (I can understand German when read or speaken slowly to, btw). Also note that your German "translation" is not a translation at all, but a paraphrase of the paragraph in English. The words "thrown off by the lowest layers of the old society" never occurs in the German sections.

The correct translation for "diese passive Verfaulung der untersten Schichten der alten Gesellschaft" is "the passive rotting bottommost section of the old society".

Don't give German lessons if you do not speak German.

Also note that Marx de-humanises the people (by calling them "rotten".