There is no reason whatsoever for a party like the SPD to relinquish any of its claims as long as it's not clear if the two parties want to negotiate with each other,
That there is turbulence at times in the parties involved is painful and not good, ... One or two have now fled abroad, or nearly fled abroad... The important thing now is to look forward. I'm sure it'll all turn out fine.
I'm in favor of the two main parties coming together.