Why was Beatrice Critical of Marx's Stark Class-Based Analysis?

-Beatrice thought of Socialism as an Inclusive Ideology and said a Socialist Society would Appeal to All Classes and that All would Benefit -This was due to their Focus on Education and Spread of Knowledge. The Webbs founded the Fabian Society, holding Influence over the Labour Party Today, as well as Constructing the LSE and 'New Statesman' Magazine