Liberalism used to be favored by the Bourgeoisie because they found themselves at odds with the old ruling classes - they wanted free elections (that at least they could participate in, so many had citizenship, property or tax requirements), free speech/press (at least for Liberals, Socialists could get fucked), and free markets (so they could continue to accumulate wealth and overtake the traditional elites).

Under Fascism, the Bourgeoisie is at the top and wants to consolidate their position. Protectionist trade policies, rigged elections, and censorship are used to promote and protect the most virulently pro-Bourgeoise elements of the Bourgeoisie.