This.
I mean a lot of his critique is not applicable to modern capitalism (how could it be, keeping in mind that the economic system looked very different back then - you wouldn't take Smith's and Ricardo's works and apply them one-for-one to modern capitalism either), but there is a lot of very valid criticism in his thoughts, in fact, I'd argue that most of his effort actually went into a criticism of capitalism rather than developing communism. The Capital for example is little more than an analysis and critique of capitalism.
I mean a lot of his critique is not applicable to modern capitalism (how could it be, keeping in mind that the economic system looked very different back then - you wouldn't take Smith's and Ricardo's works and apply them one-for-one to modern capitalism either), but there is a lot of very valid criticism in his thoughts, in fact, I'd argue that most of his effort actually went into a criticism of capitalism rather than developing communism. The Capital for example is little more than an analysis and critique of capitalism.
