Most of the arguments deployed against capitalism in general also work for social democracy and Keynesianism, because both only ameliorate rather than solve the issues with capitalism. Even that's debatable mind you; the "full employment" they supposedly created began to erode gradually as soon as the war was over in Britain, and the boom-bust cycle was far from resolved contrary to popular opinion - hence why the United States suffered recessions in 1949, 1953-4, 1958, 1960-1, 1969-70 and 1973-75, with the last one being particularly sharp.
“Socialism cannot abstract itself from individual interests. Socialist society alone can most fully satisfy these personal interests. More than that; socialist society alone can firmly safeguard the interests of the individual. In this sense there is no irreconcilable contrast between “individualism” and socialism. But can we deny the contrast between classes, between the propertied class, the capitalist class, and the toiling class, the proletarian class?” - Josef Stalin, Marxism Versus Liberalism: An Interview With H.G. Wells, 1934
"Those who are in ideology believe themselves by definition outside ideology: one of the effects of ideology is the practical denegation of the ideological character of ideology by ideology: ideology never says, ‘I am ideological’." - Louis Althusser, Ideology and Ideological State Apparatuses, 1969
