First, I want to take strong, strong exception to the claim that something going on in the real world isn't worth noting because it is "on a lower level of abstraction." That road leads to the claim that much of what is isn't really real because only the rational is real, and to Jean-Paul Sartre's declaration that people shouldn't talk about the GULAG because it would only confuse the workers.
It is bad politics, it is immoral politics, to say that our task is only to make sure that the right shadows are cast on the walls of the cave so that those in darkness will react appropriately. Instead, we should be aiming to raise the level of the debate: to help people walk outside into the light.
Second, I don't think that it raises the level of the debate for Noam Chomsky or Seth Akerman to claim that Bob Rubin is part of a "monolithic opposition" to Oskar Lafontaine. "Monolithic" = single-block-of-stone-without-cracks-fissures-or-joints, after all.
Oskar Lafontaine is a social democrat. Bob Rubin is a liberal democrat. Consider: the twentieth century political world has included or includes:
Kim Il Sungists
Pol Potists
Stalinists
Leninists
Trotskyists
Left-wing anarchists
State socialists believing in central planning
State socialists believing in limited worker
self-management
State socialists believing in market economies and
centralized control of politics by the CCP
(Deng faction)
Social democrats
Liberal democrats
Antisocial democrats
Liberal republicans
Social control republicans
Laissez-faire republicans
Libertarian republicans
Right-wing anarchists
Authoritarian oligarchs
Populist oligarchs
Military oligarchs
"Soft" fascists
"Hard" fascists
National socialists
and other factions as well...
Against this backdrop, the differences between liberal democrats and social democrats are really quite minor: differences between what means are appropriate to achieve common ends, and differences between what ends commonly-accepted means will lead to in two generations or so.
Seth Akerman writes of Lafontaine's desire for "wholesale reflation of the European economy to bring down unemployment and fend off attacks on the regulatory and welfare state."
And I recall a Clinton-administration National Economic Council meeting (at which I stood against the back wall with the other aides)--perhaps in June 1993?--and heard Bob Rubin state that aggressive pursuit of deficit reduction was our best chance to get a prolonged investment-led job-creating high-productivity-growth recovery, and that without such a prolonged economic expansion the chances of defending and expanding the New Deal and the Great Society were zero...
Brad DeLong