As long as it doesn't finally start doing social democratic politics, things will continue this way. Who should even be interested in a purely economically-oriented SPD? The Union can sit back grinning and simply block everything in the Bundesrat - it's cheap and costs no votes. And so the Union diligently blocks initiatives that it would never have dared to tackle itself. The SPD will never really attack this nonsensical behavior of the Union and exploit it politically - for that it would first have to be genuinely convinced of the nonsense it's spouting. So it keeps making compromises on top of compromises and in the end no compromise emerges, but only the compromise of the social democratic idea.
And society loses. What kind of future should we expect if the choice only exists between right and right?
At RP-Online: Politik I found the original article.