I think Social Democracy had the meaning that Democratic Socialism has today.
That is, a democratic reformist approach to transforming and ultimately abolishing the capitalist system.
"Power concedes nothing without a demand. It never did and it never will." (Fredrick Douglass)
´We want freedom by any means necessary. We want justice by any means necessary. We want equality by any means necessary.´ (Malcolm X)
´Freedom only for the members of the government, only for the members of the Party — though they are quite numerous — is no freedom at all. Freedom is always the freedom of dissenters.´ (Rosa Luxemburg)